var xmlHttp

//For email check ******************************************************************
function showHint(str,spanid,url1)
{
showHint.spanid=spanid;
showHint.url1=url1;
if (str.length==0)
  { 
  document.getElementById(showHint.spanid).innerHTML="";
  return;
  }
if (str=="Class")
  { 
  document.getElementById(showHint.spanid).innerHTML="<select size='1'  style='font-size:8pt' name='Subject_Code' tabindex='10'><option Selected value='Subject'>Subject</option></select>";
  return;
  }
xmlHttp=GetXmlHttpObject();
if (xmlHttp==null)
  {
  alert ("Your browser does not support AJAX!");
  return;
  } 
var url=showHint.url1;
var jj=url.indexOf("?")
	if (jj>0)
	{
		url=url+"&q="+str;
	}
	else
	{
		url=url+"?q="+str;
	}
url=url+"&sid="+Math.random();
xmlHttp.onreadystatechange=stateChanged;
xmlHttp.open("GET",url,true);
xmlHttp.send(null);
} 

function stateChanged() 
{ 
if (xmlHttp.readyState==4)
{ 
document.getElementById(showHint.spanid).innerHTML=xmlHttp.responseText;
}
}

function GetXmlHttpObject()
{
var xmlHttp=null;
try
  {
  // Firefox, Opera 8.0+, Safari
  xmlHttp=new XMLHttpRequest();
  }
catch (e)
  {
  // Internet Explorer
  try
    {
    xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
    }
  catch (e)
    {
    xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
    }
  }
return xmlHttp;
}