// Create an instance of the XML HTTP Request object
	var oXMLHTTP;
	
	function CheckIfEmailExist(frm, status) {

		// Prepare the XMLHTTP object for a HTTP POST to our validation ASP page
		if (window.XMLHttpRequest) { // Mozilla, Safari, ...
            oXMLHTTP = new XMLHttpRequest();
            if (oXMLHTTP.overrideMimeType) {
                oXMLHTTP.overrideMimeType('text/xml');
                // See note below about this line
            }
        } else if (window.ActiveXObject) { // IE
            try {
                oXMLHTTP = new ActiveXObject("Msxml2.XMLHTTP");
            } catch (e) {
                try {
                    oXMLHTTP = new ActiveXObject("Microsoft.XMLHTTP");
                } catch (e) {}
            }
        }
		
		var email = frm.billingemail.value;
		var sURL = "../scripts/getEmail.php?email=" + encodeURIComponent(email);
					
		// Define an event handler for processing
		oXMLHTTP.onreadystatechange = function() { managestatechange(status); };
		oXMLHTTP.open( "GET", sURL, true);
		
		// Execute the request
		oXMLHTTP.send(null);
	}

	function managestatechange(status) {
		if (oXMLHTTP.readyState == 4) {
			if (oXMLHTTP.responseText == status) {
			
				getObj('registration_error').style.display = "inline";
				getObj('hddEmailValid').value = "0";
							
				getObj('billingemail').focus();		
				
				return false;
			}
			else {
					
				getObj('registration_error').style.display = "none";
                getObj('hddEmailValid').value = "1";
				
				getObj('registration_form').submit();
                
				return true;
			}
		}		
	}