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function assign(id){
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    {
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    xmlHttp=new XMLHttpRequest();
    }
catch (e)
    {
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  try
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      xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
      }
  catch (e)
      {
      try
        {
        xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
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        {
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