var objRequest;
function getajax()
{
try
{
   objRequest = new ActiveXObject("Msxml2.XMLHTTP");
}
catch(e)
{
  try
     {
     objRequest = new ActiveXObject("Microsoft.XMLHTTP");
     }
  catch(oc)
   {
     objRequest=null;
   }
}
}
function Isname(pars)
{ getajax();
  var name = pars
if(!objRequest&&typeof XMLHttpRequest!="undefined")
   {objRequest=new XMLHttpRequest();}
var url="check.asp?action=Isreg&name="+escape(name);
   if(objRequest!=null)
     {
       objRequest.onreadystatechange = nameProcess;
       objRequest.open("GET",url,true);
       objRequest.send(null);
     }
}