docs/source/ext-base-end.html

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   3   <title>The source code</title>\r
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   8     <pre class="prettyprint lang-js">   \r
   9         if(Ext.isIE) {\r
  10         function fnCleanUp() {\r
  11             var p = Function.prototype;\r
  12             delete p.createSequence;\r
  13             delete p.defer;\r
  14             delete p.createDelegate;\r
  15             delete p.createCallback;\r
  16             delete p.createInterceptor;\r
  17 \r
  18             window.detachEvent("onunload", fnCleanUp);\r
  19         }\r
  20         window.attachEvent("onunload", fnCleanUp);\r
  21     }\r
  22 })();</pre>    \r
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