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function ajaxFunction()
{
var xmlHttp;
try
    {
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catch (e)
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try
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xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
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catch (e)
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try
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  xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
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     }
catch (e)
     {
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  return false;
     }
}
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}
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