var xmlHttp

	function chkmsg(email,type)
	{
		
   var url="chk_email.php?email="+email+"&user_type="+type;
   xmlHttp=GetXmlHttpObject(stateChanged)
   xmlHttp.open("GET", url , true)
   xmlHttp.send(null)
		
	} 
	
	function stateChanged() 
	{ 
		if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
		{ 
				
			var result=xmlHttp.responseText;
			//alert(result);
				result=result.split("~");
			if(result[1]>0)
			{
				alert("This Email Id Already Exists");
				document.form1.email.focus();
				return false;
			}
			else if(result[0]==1)
			{				
			  securityCheck(document.form1.security_code.value);			 	
			}
			else
			{
			  securityCheck(document.form1.security_code.value);
			}			
		} 
	} 
	
	

	function GetXmlHttpObject(handler)
	{ 
		var objXmlHttp=null
	
		if (navigator.userAgent.indexOf("Opera")>=0)
		{
			alert("This example doesn't work in Opera") 
			return 
		}
		if (navigator.userAgent.indexOf("MSIE")>=0)
		{ 
			var strName="Msxml2.XMLHTTP"
			if (navigator.appVersion.indexOf("MSIE 5.5")>=0)
			{
				strName="Microsoft.XMLHTTP"
			} 
			try
			{ 
				objXmlHttp=new ActiveXObject(strName)
				objXmlHttp.onreadystatechange=handler 
				return objXmlHttp
			} 
			catch(e)
			{ 
				alert("Error. Scripting for ActiveX might be disabled") 
				return 
			} 
		} 
			if (navigator.userAgent.indexOf("Mozilla")>=0)
			{
				objXmlHttp=new XMLHttpRequest()
				objXmlHttp.onload=handler
				objXmlHttp.onerror=handler 
				return objXmlHttp
			}
	}