1 | /*! SWFObject v2.2 <http://code.google.com/p/swfobject/> |
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2 | is released under the MIT License <http://www.opensource.org/licenses/mit-license.php> |
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3 | */ |
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4 | |
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5 | var swfobject = function() { |
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6 | |
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7 | var UNDEF = "undefined", |
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8 | OBJECT = "object", |
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9 | SHOCKWAVE_FLASH = "Shockwave Flash", |
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10 | SHOCKWAVE_FLASH_AX = "ShockwaveFlash.ShockwaveFlash", |
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11 | FLASH_MIME_TYPE = "application/x-shockwave-flash", |
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12 | EXPRESS_INSTALL_ID = "SWFObjectExprInst", |
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13 | ON_READY_STATE_CHANGE = "onreadystatechange", |
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14 | |
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15 | win = window, |
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16 | doc = document, |
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17 | nav = navigator, |
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18 | |
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19 | plugin = false, |
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20 | domLoadFnArr = [main], |
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21 | regObjArr = [], |
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22 | objIdArr = [], |
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23 | listenersArr = [], |
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24 | storedAltContent, |
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25 | storedAltContentId, |
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26 | storedCallbackFn, |
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27 | storedCallbackObj, |
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28 | isDomLoaded = false, |
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29 | isExpressInstallActive = false, |
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30 | dynamicStylesheet, |
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31 | dynamicStylesheetMedia, |
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32 | autoHideShow = true, |
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33 | |
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34 | /* Centralized function for browser feature detection |
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35 | - User agent string detection is only used when no good alternative is possible |
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36 | - Is executed directly for optimal performance |
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37 | */ |
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38 | ua = function() { |
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39 | var w3cdom = typeof doc.getElementById != UNDEF && typeof doc.getElementsByTagName != UNDEF && typeof doc.createElement != UNDEF, |
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40 | u = nav.userAgent.toLowerCase(), |
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41 | p = nav.platform.toLowerCase(), |
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42 | windows = p ? /win/.test(p) : /win/.test(u), |
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43 | mac = p ? /mac/.test(p) : /mac/.test(u), |
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44 | webkit = /webkit/.test(u) ? parseFloat(u.replace(/^.*webkit\/(\d+(\.\d+)?).*$/, "$1")) : false, // returns either the webkit version or false if not webkit |
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45 | ie = !+"\v1", // feature detection based on Andrea Giammarchi's solution: http://webreflection.blogspot.com/2009/01/32-bytes-to-know-if-your-browser-is-ie.html |
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46 | playerVersion = [0,0,0], |
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47 | d = null; |
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48 | if (typeof nav.plugins != UNDEF && typeof nav.plugins[SHOCKWAVE_FLASH] == OBJECT) { |
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49 | d = nav.plugins[SHOCKWAVE_FLASH].description; |
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50 | if (d && !(typeof nav.mimeTypes != UNDEF && nav.mimeTypes[FLASH_MIME_TYPE] && !nav.mimeTypes[FLASH_MIME_TYPE].enabledPlugin)) { // navigator.mimeTypes["application/x-shockwave-flash"].enabledPlugin indicates whether plug-ins are enabled or disabled in Safari 3+ |
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51 | plugin = true; |
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52 | ie = false; // cascaded feature detection for Internet Explorer |
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53 | d = d.replace(/^.*\s+(\S+\s+\S+$)/, "$1"); |
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54 | playerVersion[0] = parseInt(d.replace(/^(.*)\..*$/, "$1"), 10); |
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55 | playerVersion[1] = parseInt(d.replace(/^.*\.(.*)\s.*$/, "$1"), 10); |
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56 | playerVersion[2] = /[a-zA-Z]/.test(d) ? parseInt(d.replace(/^.*[a-zA-Z]+(.*)$/, "$1"), 10) : 0; |
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57 | } |
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58 | } |
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59 | else if (typeof win.ActiveXObject != UNDEF) { |
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60 | try { |
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61 | var a = new ActiveXObject(SHOCKWAVE_FLASH_AX); |
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62 | if (a) { // a will return null when ActiveX is disabled |
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63 | d = a.GetVariable("$version"); |
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64 | if (d) { |
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65 | ie = true; // cascaded feature detection for Internet Explorer |
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66 | d = d.split(" ")[1].split(","); |
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67 | playerVersion = [parseInt(d[0], 10), parseInt(d[1], 10), parseInt(d[2], 10)]; |
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68 | } |
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69 | } |
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70 | } |
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71 | catch(e) {} |
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72 | } |
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73 | return { w3:w3cdom, pv:playerVersion, wk:webkit, ie:ie, win:windows, mac:mac }; |
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74 | }(), |
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75 | |
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76 | /* Cross-browser onDomLoad |
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77 | - Will fire an event as soon as the DOM of a web page is loaded |
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78 | - Internet Explorer workaround based on Diego Perini's solution: http://javascript.nwbox.com/IEContentLoaded/ |
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79 | - Regular onload serves as fallback |
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80 | */ |
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81 | onDomLoad = function() { |
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82 | if (!ua.w3) { return; } |
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83 | if ((typeof doc.readyState != UNDEF && doc.readyState == "complete") || (typeof doc.readyState == UNDEF && (doc.getElementsByTagName("body")[0] || doc.body))) { // function is fired after onload, e.g. when script is inserted dynamically |
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84 | callDomLoadFunctions(); |
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85 | } |
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86 | if (!isDomLoaded) { |
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87 | if (typeof doc.addEventListener != UNDEF) { |
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88 | doc.addEventListener("DOMContentLoaded", callDomLoadFunctions, false); |
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89 | } |
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90 | if (ua.ie && ua.win) { |
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91 | doc.attachEvent(ON_READY_STATE_CHANGE, function() { |
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92 | if (doc.readyState == "complete") { |
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93 | doc.detachEvent(ON_READY_STATE_CHANGE, arguments.callee); |
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94 | callDomLoadFunctions(); |
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95 | } |
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96 | }); |
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97 | if (win == top) { // if not inside an iframe |
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98 | (function(){ |
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99 | if (isDomLoaded) { return; } |
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100 | try { |
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101 | doc.documentElement.doScroll("left"); |
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102 | } |
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103 | catch(e) { |
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104 | setTimeout(arguments.callee, 0); |
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105 | return; |
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106 | } |
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107 | callDomLoadFunctions(); |
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108 | })(); |
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109 | } |
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110 | } |
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111 | if (ua.wk) { |
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112 | (function(){ |
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113 | if (isDomLoaded) { return; } |
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114 | if (!/loaded|complete/.test(doc.readyState)) { |
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115 | setTimeout(arguments.callee, 0); |
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116 | return; |
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117 | } |
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118 | callDomLoadFunctions(); |
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119 | })(); |
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120 | } |
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121 | addLoadEvent(callDomLoadFunctions); |
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122 | } |
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123 | }(); |
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124 | |
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125 | function callDomLoadFunctions() { |
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126 | if (isDomLoaded) { return; } |
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127 | try { // test if we can really add/remove elements to/from the DOM; we don't want to fire it too early |
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128 | var t = doc.getElementsByTagName("body")[0].appendChild(createElement("span")); |
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129 | t.parentNode.removeChild(t); |
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130 | } |
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131 | catch (e) { return; } |
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132 | isDomLoaded = true; |
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133 | var dl = domLoadFnArr.length; |
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134 | for (var i = 0; i < dl; i++) { |
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135 | domLoadFnArr[i](); |
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136 | } |
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137 | } |
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138 | |
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139 | function addDomLoadEvent(fn) { |
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140 | if (isDomLoaded) { |
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141 | fn(); |
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142 | } |
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143 | else { |
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144 | domLoadFnArr[domLoadFnArr.length] = fn; // Array.push() is only available in IE5.5+ |
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145 | } |
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146 | } |
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147 | |
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148 | /* Cross-browser onload |
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149 | - Based on James Edwards' solution: http://brothercake.com/site/resources/scripts/onload/ |
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150 | - Will fire an event as soon as a web page including all of its assets are loaded |
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151 | */ |
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152 | function addLoadEvent(fn) { |
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153 | if (typeof win.addEventListener != UNDEF) { |
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154 | win.addEventListener("load", fn, false); |
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155 | } |
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156 | else if (typeof doc.addEventListener != UNDEF) { |
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157 | doc.addEventListener("load", fn, false); |
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158 | } |
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159 | else if (typeof win.attachEvent != UNDEF) { |
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160 | addListener(win, "onload", fn); |
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161 | } |
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162 | else if (typeof win.onload == "function") { |
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163 | var fnOld = win.onload; |
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164 | win.onload = function() { |
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165 | fnOld(); |
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166 | fn(); |
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167 | }; |
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168 | } |
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169 | else { |
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170 | win.onload = fn; |
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171 | } |
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172 | } |
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173 | |
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174 | /* Main function |
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175 | - Will preferably execute onDomLoad, otherwise onload (as a fallback) |
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176 | */ |
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177 | function main() { |
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178 | if (plugin) { |
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179 | testPlayerVersion(); |
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180 | } |
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181 | else { |
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182 | matchVersions(); |
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183 | } |
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184 | } |
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185 | |
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186 | /* Detect the Flash Player version for non-Internet Explorer browsers |
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187 | - Detecting the plug-in version via the object element is more precise than using the plugins collection item's description: |
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188 | a. Both release and build numbers can be detected |
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189 | b. Avoid wrong descriptions by corrupt installers provided by Adobe |
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190 | c. Avoid wrong descriptions by multiple Flash Player entries in the plugin Array, caused by incorrect browser imports |
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191 | - Disadvantage of this method is that it depends on the availability of the DOM, while the plugins collection is immediately available |
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192 | */ |
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193 | function testPlayerVersion() { |
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194 | var b = doc.getElementsByTagName("body")[0]; |
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195 | var o = createElement(OBJECT); |
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196 | o.setAttribute("type", FLASH_MIME_TYPE); |
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197 | var t = b.appendChild(o); |
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198 | if (t) { |
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199 | var counter = 0; |
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200 | (function(){ |
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201 | if (typeof t.GetVariable != UNDEF) { |
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202 | var d = t.GetVariable("$version"); |
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203 | if (d) { |
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204 | d = d.split(" ")[1].split(","); |
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205 | ua.pv = [parseInt(d[0], 10), parseInt(d[1], 10), parseInt(d[2], 10)]; |
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206 | } |
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207 | } |
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208 | else if (counter < 10) { |
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209 | counter++; |
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210 | setTimeout(arguments.callee, 10); |
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211 | return; |
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212 | } |
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213 | b.removeChild(o); |
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214 | t = null; |
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215 | matchVersions(); |
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216 | })(); |
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217 | } |
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218 | else { |
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219 | matchVersions(); |
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220 | } |
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221 | } |
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222 | |
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223 | /* Perform Flash Player and SWF version matching; static publishing only |
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224 | */ |
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225 | function matchVersions() { |
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226 | var rl = regObjArr.length; |
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227 | if (rl > 0) { |
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228 | for (var i = 0; i < rl; i++) { // for each registered object element |
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229 | var id = regObjArr[i].id; |
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230 | var cb = regObjArr[i].callbackFn; |
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231 | var cbObj = {success:false, id:id}; |
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232 | if (ua.pv[0] > 0) { |
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233 | var obj = getElementById(id); |
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234 | if (obj) { |
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235 | if (hasPlayerVersion(regObjArr[i].swfVersion) && !(ua.wk && ua.wk < 312)) { // Flash Player version >= published SWF version: Houston, we have a match! |
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236 | setVisibility(id, true); |
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237 | if (cb) { |
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238 | cbObj.success = true; |
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239 | cbObj.ref = getObjectById(id); |
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240 | cb(cbObj); |
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241 | } |
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242 | } |
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243 | else if (regObjArr[i].expressInstall && canExpressInstall()) { // show the Adobe Express Install dialog if set by the web page author and if supported |
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244 | var att = {}; |
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245 | att.data = regObjArr[i].expressInstall; |
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246 | att.width = obj.getAttribute("width") || "0"; |
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247 | att.height = obj.getAttribute("height") || "0"; |
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248 | if (obj.getAttribute("class")) { att.styleclass = obj.getAttribute("class"); } |
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249 | if (obj.getAttribute("align")) { att.align = obj.getAttribute("align"); } |
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250 | // parse HTML object param element's name-value pairs |
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251 | var par = {}; |
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252 | var p = obj.getElementsByTagName("param"); |
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253 | var pl = p.length; |
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254 | for (var j = 0; j < pl; j++) { |
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255 | if (p[j].getAttribute("name").toLowerCase() != "movie") { |
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256 | par[p[j].getAttribute("name")] = p[j].getAttribute("value"); |
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257 | } |
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258 | } |
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259 | showExpressInstall(att, par, id, cb); |
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260 | } |
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261 | else { // Flash Player and SWF version mismatch or an older Webkit engine that ignores the HTML object element's nested param elements: display alternative content instead of SWF |
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262 | displayAltContent(obj); |
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263 | if (cb) { cb(cbObj); } |
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264 | } |
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265 | } |
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266 | } |
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267 | else { // if no Flash Player is installed or the fp version cannot be detected we let the HTML object element do its job (either show a SWF or alternative content) |
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268 | setVisibility(id, true); |
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269 | if (cb) { |
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270 | var o = getObjectById(id); // test whether there is an HTML object element or not |
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271 | if (o && typeof o.SetVariable != UNDEF) { |
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272 | cbObj.success = true; |
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273 | cbObj.ref = o; |
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274 | } |
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275 | cb(cbObj); |
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276 | } |
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277 | } |
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278 | } |
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279 | } |
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280 | } |
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281 | |
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282 | function getObjectById(objectIdStr) { |
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283 | var r = null; |
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284 | var o = getElementById(objectIdStr); |
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285 | if (o && o.nodeName == "OBJECT") { |
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286 | if (typeof o.SetVariable != UNDEF) { |
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287 | r = o; |
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288 | } |
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289 | else { |
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290 | var n = o.getElementsByTagName(OBJECT)[0]; |
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291 | if (n) { |
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292 | r = n; |
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293 | } |
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294 | } |
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295 | } |
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296 | return r; |
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297 | } |
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298 | |
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299 | /* Requirements for Adobe Express Install |
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300 | - only one instance can be active at a time |
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301 | - fp 6.0.65 or higher |
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302 | - Win/Mac OS only |
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303 | - no Webkit engines older than version 312 |
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304 | */ |
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305 | function canExpressInstall() { |
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306 | return !isExpressInstallActive && hasPlayerVersion("6.0.65") && (ua.win || ua.mac) && !(ua.wk && ua.wk < 312); |
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307 | } |
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308 | |
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309 | /* Show the Adobe Express Install dialog |
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310 | - Reference: http://www.adobe.com/cfusion/knowledgebase/index.cfm?id=6a253b75 |
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311 | */ |
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312 | function showExpressInstall(att, par, replaceElemIdStr, callbackFn) { |
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313 | isExpressInstallActive = true; |
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314 | storedCallbackFn = callbackFn || null; |
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315 | storedCallbackObj = {success:false, id:replaceElemIdStr}; |
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316 | var obj = getElementById(replaceElemIdStr); |
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317 | if (obj) { |
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318 | if (obj.nodeName == "OBJECT") { // static publishing |
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319 | storedAltContent = abstractAltContent(obj); |
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320 | storedAltContentId = null; |
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321 | } |
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322 | else { // dynamic publishing |
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323 | storedAltContent = obj; |
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324 | storedAltContentId = replaceElemIdStr; |
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325 | } |
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326 | att.id = EXPRESS_INSTALL_ID; |
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327 | if (typeof att.width == UNDEF || (!/%$/.test(att.width) && parseInt(att.width, 10) < 310)) { att.width = "310"; } |
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328 | if (typeof att.height == UNDEF || (!/%$/.test(att.height) && parseInt(att.height, 10) < 137)) { att.height = "137"; } |
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329 | doc.title = doc.title.slice(0, 47) + " - Flash Player Installation"; |
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330 | var pt = ua.ie && ua.win ? "ActiveX" : "PlugIn", |
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331 | fv = "MMredirectURL=" + encodeURI(window.location).toString().replace(/&/g,"%26") + "&MMplayerType=" + pt + "&MMdoctitle=" + doc.title; |
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332 | if (typeof par.flashvars != UNDEF) { |
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333 | par.flashvars += "&" + fv; |
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334 | } |
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335 | else { |
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336 | par.flashvars = fv; |
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337 | } |
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338 | // IE only: when a SWF is loading (AND: not available in cache) wait for the readyState of the object element to become 4 before removing it, |
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339 | // because you cannot properly cancel a loading SWF file without breaking browser load references, also obj.onreadystatechange doesn't work |
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340 | if (ua.ie && ua.win && obj.readyState != 4) { |
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341 | var newObj = createElement("div"); |
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342 | replaceElemIdStr += "SWFObjectNew"; |
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343 | newObj.setAttribute("id", replaceElemIdStr); |
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344 | obj.parentNode.insertBefore(newObj, obj); // insert placeholder div that will be replaced by the object element that loads expressinstall.swf |
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345 | obj.style.display = "none"; |
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346 | (function(){ |
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347 | if (obj.readyState == 4) { |
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348 | obj.parentNode.removeChild(obj); |
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349 | } |
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350 | else { |
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351 | setTimeout(arguments.callee, 10); |
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352 | } |
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353 | })(); |
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354 | } |
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355 | createSWF(att, par, replaceElemIdStr); |
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356 | } |
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357 | } |
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358 | |
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359 | /* Functions to abstract and display alternative content |
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360 | */ |
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361 | function displayAltContent(obj) { |
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362 | if (ua.ie && ua.win && obj.readyState != 4) { |
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363 | // IE only: when a SWF is loading (AND: not available in cache) wait for the readyState of the object element to become 4 before removing it, |
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364 | // because you cannot properly cancel a loading SWF file without breaking browser load references, also obj.onreadystatechange doesn't work |
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365 | var el = createElement("div"); |
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366 | obj.parentNode.insertBefore(el, obj); // insert placeholder div that will be replaced by the alternative content |
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367 | el.parentNode.replaceChild(abstractAltContent(obj), el); |
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368 | obj.style.display = "none"; |
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369 | (function(){ |
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370 | if (obj.readyState == 4) { |
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371 | obj.parentNode.removeChild(obj); |
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372 | } |
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373 | else { |
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374 | setTimeout(arguments.callee, 10); |
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375 | } |
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376 | })(); |
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377 | } |
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378 | else { |
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379 | obj.parentNode.replaceChild(abstractAltContent(obj), obj); |
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380 | } |
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381 | } |
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382 | |
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383 | function abstractAltContent(obj) { |
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384 | var ac = createElement("div"); |
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385 | if (ua.win && ua.ie) { |
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386 | ac.innerHTML = obj.innerHTML; |
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387 | } |
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388 | else { |
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389 | var nestedObj = obj.getElementsByTagName(OBJECT)[0]; |
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390 | if (nestedObj) { |
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391 | var c = nestedObj.childNodes; |
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392 | if (c) { |
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393 | var cl = c.length; |
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394 | for (var i = 0; i < cl; i++) { |
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395 | if (!(c[i].nodeType == 1 && c[i].nodeName == "PARAM") && !(c[i].nodeType == 8)) { |
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396 | ac.appendChild(c[i].cloneNode(true)); |
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397 | } |
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398 | } |
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399 | } |
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400 | } |
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401 | } |
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402 | return ac; |
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403 | } |
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404 | |
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405 | /* Cross-browser dynamic SWF creation |
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406 | */ |
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407 | function createSWF(attObj, parObj, id) { |
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408 | var r, el = getElementById(id); |
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409 | if (ua.wk && ua.wk < 312) { return r; } |
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410 | if (el) { |
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411 | if (typeof attObj.id == UNDEF) { // if no 'id' is defined for the object element, it will inherit the 'id' from the alternative content |
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412 | attObj.id = id; |
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413 | } |
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414 | if (ua.ie && ua.win) { // Internet Explorer + the HTML object element + W3C DOM methods do not combine: fall back to outerHTML |
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415 | var att = ""; |
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416 | for (var i in attObj) { |
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417 | if (attObj[i] != Object.prototype[i]) { // filter out prototype additions from other potential libraries |
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418 | if (i.toLowerCase() == "data") { |
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419 | parObj.movie = attObj[i]; |
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420 | } |
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421 | else if (i.toLowerCase() == "styleclass") { // 'class' is an ECMA4 reserved keyword |
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422 | att += ' class="' + attObj[i] + '"'; |
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423 | } |
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424 | else if (i.toLowerCase() != "classid") { |
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425 | att += ' ' + i + '="' + attObj[i] + '"'; |
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426 | } |
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427 | } |
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428 | } |
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429 | var par = ""; |
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430 | for (var j in parObj) { |
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431 | if (parObj[j] != Object.prototype[j]) { // filter out prototype additions from other potential libraries |
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432 | par += '<param name="' + j + '" value="' + parObj[j] + '" />'; |
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433 | } |
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434 | } |
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435 | el.outerHTML = '<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"' + att + '>' + par + '</object>'; |
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436 | objIdArr[objIdArr.length] = attObj.id; // stored to fix object 'leaks' on unload (dynamic publishing only) |
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437 | r = getElementById(attObj.id); |
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438 | } |
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439 | else { // well-behaving browsers |
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440 | var o = createElement(OBJECT); |
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441 | o.setAttribute("type", FLASH_MIME_TYPE); |
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442 | for (var m in attObj) { |
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443 | if (attObj[m] != Object.prototype[m]) { // filter out prototype additions from other potential libraries |
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444 | if (m.toLowerCase() == "styleclass") { // 'class' is an ECMA4 reserved keyword |
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445 | o.setAttribute("class", attObj[m]); |
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446 | } |
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447 | else if (m.toLowerCase() != "classid") { // filter out IE specific attribute |
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448 | o.setAttribute(m, attObj[m]); |
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449 | } |
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450 | } |
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451 | } |
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452 | for (var n in parObj) { |
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453 | if (parObj[n] != Object.prototype[n] && n.toLowerCase() != "movie") { // filter out prototype additions from other potential libraries and IE specific param element |
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454 | createObjParam(o, n, parObj[n]); |
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455 | } |
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456 | } |
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457 | el.parentNode.replaceChild(o, el); |
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458 | r = o; |
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459 | } |
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460 | } |
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461 | return r; |
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462 | } |
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463 | |
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464 | function createObjParam(el, pName, pValue) { |
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465 | var p = createElement("param"); |
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466 | p.setAttribute("name", pName); |
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467 | p.setAttribute("value", pValue); |
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468 | el.appendChild(p); |
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469 | } |
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470 | |
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471 | /* Cross-browser SWF removal |
---|
472 | - Especially needed to safely and completely remove a SWF in Internet Explorer |
---|
473 | */ |
---|
474 | function removeSWF(id) { |
---|
475 | var obj = getElementById(id); |
---|
476 | if (obj && obj.nodeName == "OBJECT") { |
---|
477 | if (ua.ie && ua.win) { |
---|
478 | obj.style.display = "none"; |
---|
479 | (function(){ |
---|
480 | if (obj.readyState == 4) { |
---|
481 | removeObjectInIE(id); |
---|
482 | } |
---|
483 | else { |
---|
484 | setTimeout(arguments.callee, 10); |
---|
485 | } |
---|
486 | })(); |
---|
487 | } |
---|
488 | else { |
---|
489 | obj.parentNode.removeChild(obj); |
---|
490 | } |
---|
491 | } |
---|
492 | } |
---|
493 | |
---|
494 | function removeObjectInIE(id) { |
---|
495 | var obj = getElementById(id); |
---|
496 | if (obj) { |
---|
497 | for (var i in obj) { |
---|
498 | if (typeof obj[i] == "function") { |
---|
499 | obj[i] = null; |
---|
500 | } |
---|
501 | } |
---|
502 | obj.parentNode.removeChild(obj); |
---|
503 | } |
---|
504 | } |
---|
505 | |
---|
506 | /* Functions to optimize JavaScript compression |
---|
507 | */ |
---|
508 | function getElementById(id) { |
---|
509 | var el = null; |
---|
510 | try { |
---|
511 | el = doc.getElementById(id); |
---|
512 | } |
---|
513 | catch (e) {} |
---|
514 | return el; |
---|
515 | } |
---|
516 | |
---|
517 | function createElement(el) { |
---|
518 | return doc.createElement(el); |
---|
519 | } |
---|
520 | |
---|
521 | /* Updated attachEvent function for Internet Explorer |
---|
522 | - Stores attachEvent information in an Array, so on unload the detachEvent functions can be called to avoid memory leaks |
---|
523 | */ |
---|
524 | function addListener(target, eventType, fn) { |
---|
525 | target.attachEvent(eventType, fn); |
---|
526 | listenersArr[listenersArr.length] = [target, eventType, fn]; |
---|
527 | } |
---|
528 | |
---|
529 | /* Flash Player and SWF content version matching |
---|
530 | */ |
---|
531 | function hasPlayerVersion(rv) { |
---|
532 | var pv = ua.pv, v = rv.split("."); |
---|
533 | v[0] = parseInt(v[0], 10); |
---|
534 | v[1] = parseInt(v[1], 10) || 0; // supports short notation, e.g. "9" instead of "9.0.0" |
---|
535 | v[2] = parseInt(v[2], 10) || 0; |
---|
536 | return (pv[0] > v[0] || (pv[0] == v[0] && pv[1] > v[1]) || (pv[0] == v[0] && pv[1] == v[1] && pv[2] >= v[2])) ? true : false; |
---|
537 | } |
---|
538 | |
---|
539 | /* Cross-browser dynamic CSS creation |
---|
540 | - Based on Bobby van der Sluis' solution: http://www.bobbyvandersluis.com/articles/dynamicCSS.php |
---|
541 | */ |
---|
542 | function createCSS(sel, decl, media, newStyle) { |
---|
543 | if (ua.ie && ua.mac) { return; } |
---|
544 | var h = doc.getElementsByTagName("head")[0]; |
---|
545 | if (!h) { return; } // to also support badly authored HTML pages that lack a head element |
---|
546 | var m = (media && typeof media == "string") ? media : "screen"; |
---|
547 | if (newStyle) { |
---|
548 | dynamicStylesheet = null; |
---|
549 | dynamicStylesheetMedia = null; |
---|
550 | } |
---|
551 | if (!dynamicStylesheet || dynamicStylesheetMedia != m) { |
---|
552 | // create dynamic stylesheet + get a global reference to it |
---|
553 | var s = createElement("style"); |
---|
554 | s.setAttribute("type", "text/css"); |
---|
555 | s.setAttribute("media", m); |
---|
556 | dynamicStylesheet = h.appendChild(s); |
---|
557 | if (ua.ie && ua.win && typeof doc.styleSheets != UNDEF && doc.styleSheets.length > 0) { |
---|
558 | dynamicStylesheet = doc.styleSheets[doc.styleSheets.length - 1]; |
---|
559 | } |
---|
560 | dynamicStylesheetMedia = m; |
---|
561 | } |
---|
562 | // add style rule |
---|
563 | if (ua.ie && ua.win) { |
---|
564 | if (dynamicStylesheet && typeof dynamicStylesheet.addRule == OBJECT) { |
---|
565 | dynamicStylesheet.addRule(sel, decl); |
---|
566 | } |
---|
567 | } |
---|
568 | else { |
---|
569 | if (dynamicStylesheet && typeof doc.createTextNode != UNDEF) { |
---|
570 | dynamicStylesheet.appendChild(doc.createTextNode(sel + " {" + decl + "}")); |
---|
571 | } |
---|
572 | } |
---|
573 | } |
---|
574 | |
---|
575 | function setVisibility(id, isVisible) { |
---|
576 | if (!autoHideShow) { return; } |
---|
577 | var v = isVisible ? "visible" : "hidden"; |
---|
578 | if (isDomLoaded && getElementById(id)) { |
---|
579 | getElementById(id).style.visibility = v; |
---|
580 | } |
---|
581 | else { |
---|
582 | createCSS("#" + id, "visibility:" + v); |
---|
583 | } |
---|
584 | } |
---|
585 | |
---|
586 | /* Filter to avoid XSS attacks |
---|
587 | */ |
---|
588 | function urlEncodeIfNecessary(s) { |
---|
589 | var regex = /[\\\"<>\.;]/; |
---|
590 | var hasBadChars = regex.exec(s) != null; |
---|
591 | return hasBadChars && typeof encodeURIComponent != UNDEF ? encodeURIComponent(s) : s; |
---|
592 | } |
---|
593 | |
---|
594 | /* Release memory to avoid memory leaks caused by closures, fix hanging audio/video threads and force open sockets/NetConnections to disconnect (Internet Explorer only) |
---|
595 | */ |
---|
596 | var cleanup = function() { |
---|
597 | if (ua.ie && ua.win) { |
---|
598 | window.attachEvent("onunload", function() { |
---|
599 | // remove listeners to avoid memory leaks |
---|
600 | var ll = listenersArr.length; |
---|
601 | for (var i = 0; i < ll; i++) { |
---|
602 | listenersArr[i][0].detachEvent(listenersArr[i][1], listenersArr[i][2]); |
---|
603 | } |
---|
604 | // cleanup dynamically embedded objects to fix audio/video threads and force open sockets and NetConnections to disconnect |
---|
605 | var il = objIdArr.length; |
---|
606 | for (var j = 0; j < il; j++) { |
---|
607 | removeSWF(objIdArr[j]); |
---|
608 | } |
---|
609 | // cleanup library's main closures to avoid memory leaks |
---|
610 | for (var k in ua) { |
---|
611 | ua[k] = null; |
---|
612 | } |
---|
613 | ua = null; |
---|
614 | for (var l in swfobject) { |
---|
615 | swfobject[l] = null; |
---|
616 | } |
---|
617 | swfobject = null; |
---|
618 | }); |
---|
619 | } |
---|
620 | }(); |
---|
621 | |
---|
622 | return { |
---|
623 | /* Public API |
---|
624 | - Reference: http://code.google.com/p/swfobject/wiki/documentation |
---|
625 | */ |
---|
626 | registerObject: function(objectIdStr, swfVersionStr, xiSwfUrlStr, callbackFn) { |
---|
627 | if (ua.w3 && objectIdStr && swfVersionStr) { |
---|
628 | var regObj = {}; |
---|
629 | regObj.id = objectIdStr; |
---|
630 | regObj.swfVersion = swfVersionStr; |
---|
631 | regObj.expressInstall = xiSwfUrlStr; |
---|
632 | regObj.callbackFn = callbackFn; |
---|
633 | regObjArr[regObjArr.length] = regObj; |
---|
634 | setVisibility(objectIdStr, false); |
---|
635 | } |
---|
636 | else if (callbackFn) { |
---|
637 | callbackFn({success:false, id:objectIdStr}); |
---|
638 | } |
---|
639 | }, |
---|
640 | |
---|
641 | getObjectById: function(objectIdStr) { |
---|
642 | if (ua.w3) { |
---|
643 | return getObjectById(objectIdStr); |
---|
644 | } |
---|
645 | }, |
---|
646 | |
---|
647 | embedSWF: function(swfUrlStr, replaceElemIdStr, widthStr, heightStr, swfVersionStr, xiSwfUrlStr, flashvarsObj, parObj, attObj, callbackFn) { |
---|
648 | var callbackObj = {success:false, id:replaceElemIdStr}; |
---|
649 | if (ua.w3 && !(ua.wk && ua.wk < 312) && swfUrlStr && replaceElemIdStr && widthStr && heightStr && swfVersionStr) { |
---|
650 | setVisibility(replaceElemIdStr, false); |
---|
651 | addDomLoadEvent(function() { |
---|
652 | widthStr += ""; // auto-convert to string |
---|
653 | heightStr += ""; |
---|
654 | var att = {}; |
---|
655 | if (attObj && typeof attObj === OBJECT) { |
---|
656 | for (var i in attObj) { // copy object to avoid the use of references, because web authors often reuse attObj for multiple SWFs |
---|
657 | att[i] = attObj[i]; |
---|
658 | } |
---|
659 | } |
---|
660 | att.data = swfUrlStr; |
---|
661 | att.width = widthStr; |
---|
662 | att.height = heightStr; |
---|
663 | var par = {}; |
---|
664 | if (parObj && typeof parObj === OBJECT) { |
---|
665 | for (var j in parObj) { // copy object to avoid the use of references, because web authors often reuse parObj for multiple SWFs |
---|
666 | par[j] = parObj[j]; |
---|
667 | } |
---|
668 | } |
---|
669 | if (flashvarsObj && typeof flashvarsObj === OBJECT) { |
---|
670 | for (var k in flashvarsObj) { // copy object to avoid the use of references, because web authors often reuse flashvarsObj for multiple SWFs |
---|
671 | if (typeof par.flashvars != UNDEF) { |
---|
672 | par.flashvars += "&" + k + "=" + flashvarsObj[k]; |
---|
673 | } |
---|
674 | else { |
---|
675 | par.flashvars = k + "=" + flashvarsObj[k]; |
---|
676 | } |
---|
677 | } |
---|
678 | } |
---|
679 | if (hasPlayerVersion(swfVersionStr)) { // create SWF |
---|
680 | var obj = createSWF(att, par, replaceElemIdStr); |
---|
681 | if (att.id == replaceElemIdStr) { |
---|
682 | setVisibility(replaceElemIdStr, true); |
---|
683 | } |
---|
684 | callbackObj.success = true; |
---|
685 | callbackObj.ref = obj; |
---|
686 | } |
---|
687 | else if (xiSwfUrlStr && canExpressInstall()) { // show Adobe Express Install |
---|
688 | att.data = xiSwfUrlStr; |
---|
689 | showExpressInstall(att, par, replaceElemIdStr, callbackFn); |
---|
690 | return; |
---|
691 | } |
---|
692 | else { // show alternative content |
---|
693 | setVisibility(replaceElemIdStr, true); |
---|
694 | } |
---|
695 | if (callbackFn) { callbackFn(callbackObj); } |
---|
696 | }); |
---|
697 | } |
---|
698 | else if (callbackFn) { callbackFn(callbackObj); } |
---|
699 | }, |
---|
700 | |
---|
701 | switchOffAutoHideShow: function() { |
---|
702 | autoHideShow = false; |
---|
703 | }, |
---|
704 | |
---|
705 | ua: ua, |
---|
706 | |
---|
707 | getFlashPlayerVersion: function() { |
---|
708 | return { major:ua.pv[0], minor:ua.pv[1], release:ua.pv[2] }; |
---|
709 | }, |
---|
710 | |
---|
711 | hasFlashPlayerVersion: hasPlayerVersion, |
---|
712 | |
---|
713 | createSWF: function(attObj, parObj, replaceElemIdStr) { |
---|
714 | if (ua.w3) { |
---|
715 | return createSWF(attObj, parObj, replaceElemIdStr); |
---|
716 | } |
---|
717 | else { |
---|
718 | return undefined; |
---|
719 | } |
---|
720 | }, |
---|
721 | |
---|
722 | showExpressInstall: function(att, par, replaceElemIdStr, callbackFn) { |
---|
723 | if (ua.w3 && canExpressInstall()) { |
---|
724 | showExpressInstall(att, par, replaceElemIdStr, callbackFn); |
---|
725 | } |
---|
726 | }, |
---|
727 | |
---|
728 | removeSWF: function(objElemIdStr) { |
---|
729 | if (ua.w3) { |
---|
730 | removeSWF(objElemIdStr); |
---|
731 | } |
---|
732 | }, |
---|
733 | |
---|
734 | createCSS: function(selStr, declStr, mediaStr, newStyleBoolean) { |
---|
735 | if (ua.w3) { |
---|
736 | createCSS(selStr, declStr, mediaStr, newStyleBoolean); |
---|
737 | } |
---|
738 | }, |
---|
739 | |
---|
740 | addDomLoadEvent: addDomLoadEvent, |
---|
741 | |
---|
742 | addLoadEvent: addLoadEvent, |
---|
743 | |
---|
744 | getQueryParamValue: function(param) { |
---|
745 | var q = doc.location.search || doc.location.hash; |
---|
746 | if (q) { |
---|
747 | if (/\?/.test(q)) { q = q.split("?")[1]; } // strip question mark |
---|
748 | if (param == null) { |
---|
749 | return urlEncodeIfNecessary(q); |
---|
750 | } |
---|
751 | var pairs = q.split("&"); |
---|
752 | for (var i = 0; i < pairs.length; i++) { |
---|
753 | if (pairs[i].substring(0, pairs[i].indexOf("=")) == param) { |
---|
754 | return urlEncodeIfNecessary(pairs[i].substring((pairs[i].indexOf("=") + 1))); |
---|
755 | } |
---|
756 | } |
---|
757 | } |
---|
758 | return ""; |
---|
759 | }, |
---|
760 | |
---|
761 | // For internal usage only |
---|
762 | expressInstallCallback: function() { |
---|
763 | if (isExpressInstallActive) { |
---|
764 | var obj = getElementById(EXPRESS_INSTALL_ID); |
---|
765 | if (obj && storedAltContent) { |
---|
766 | obj.parentNode.replaceChild(storedAltContent, obj); |
---|
767 | if (storedAltContentId) { |
---|
768 | setVisibility(storedAltContentId, true); |
---|
769 | if (ua.ie && ua.win) { storedAltContent.style.display = "block"; } |
---|
770 | } |
---|
771 | if (storedCallbackFn) { storedCallbackFn(storedCallbackObj); } |
---|
772 | } |
---|
773 | isExpressInstallActive = false; |
---|
774 | } |
---|
775 | } |
---|
776 | }; |
---|
777 | }(); |
---|