var myConn = new XHConn();
		
	if (!myConn) alert("XMLHTTP not available. Try a newer/better browser.");

	var F_check_user = function (oXML) 
	{ 	
		var return_value = oXML.responseText; 
		if( return_value == "yes" )
		 {
		 	document.getElementById("user_error").innerHTML	=	"<br />This user name is already exist in our database!";
			document.getElementById("sub").innerHTML		=	"<input name='Submit' type='submit'  value='Submit' disabled='disabled'/>";
		 }else{
			document.getElementById("user_error").innerHTML	=	""; 
			document.getElementById("sub").innerHTML		=	"";
			document.getElementById("sub").innerHTML		=	"<input name='Submit' type='submit'  value='Submit' />";
		 }
	}
	
	var F_check_user_edit = function (oXML) 
	{ 	
		var return_value = oXML.responseText; 
		if( return_value == "yes" )
		 {
		 	document.getElementById("user_error").innerHTML	=	"<br />This user name is already exist in our database!";
			document.getElementById("sub").innerHTML		=	"<input name='Submit' type='submit'  value='Update' disabled='disabled'/>";
		 }else{
			document.getElementById("user_error").innerHTML	=	""; 
			document.getElementById("sub").innerHTML		=	"";
			document.getElementById("sub").innerHTML		=	"<input name='Submit' type='submit' value='Update' />";
		 }
	}
	
	var AJAX_LOGIN_CHECK = function (oXML) 
	 { 	
		var passed_values = oXML.responseText; 
		if( passed_values == '1' ) 
		 	 window.location.href = "index.php";  
		else{
			document.getElementById("redtext").style.display = "block"; 
			document.fl.username.value	=	"";	
			document.fl.password.value	=	"";
		}
	 }