var xmlHttp; 
function processLogout(pageName){
		var req = new XMLHttpRequest();
		if (req) {
			req.onreadystatechange = function()
			{
				if (req.readyState == 4 && req.status == 200) {
	      			var temp = req.responseText;
		       		if(pageName==undefined)
		       			pageName="login.php";
		       		window.location.href=pageName;
	   			}
    		};
    		req.open('GET', "logout.php");
	     	req.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded; charset=UTF-8');
   			req.send(null);
   		}
}	
function processLogin_OldOK(){
	// Use KTP Library 
	createXMLHttpRequest();
	var username =document.forms['formName']['txtUserName'].value;
	var password =document.forms['formName']['txtPassword'].value;
	//	var username = document.getElementById("txtUserName").value;
	//	var password = document.getElementById("txtPassword").value;	
	xmlHttp.open("get", "media-centre-b-login-check.php?username="+username+"&password="+password, true);
	xmlHttp.onReadyStateChange = function(){
		if(xmlHttp.readyState == 4){
			if(xmlHttp.status == 200){
				if(xmlHttp.responseText == "OK"){
			  		window.location.href="media-centre-b-list.php";
				}else{
			  		window.ocaion.href="media-centre-b-login.php";
				}
			}else{
				errResult("Error : " + xmlHttp.statusText);
			}
		}            
	};
	xmlHttp.send(null);
}
function processLogin(){
  		//Use ICE Library
		var username =document.forms['formName']['txtUserName'].value;
		var password =document.forms['formName']['txtPassword'].value;
		
		var req = new XMLHttpRequest();
		if (req) {
			req.onreadystatechange = function()
			{
				if (req.readyState == 4 && req.status == 200) {
	      			var temp = req.responseText;
		       		if(temp== 'OK'){
		       			window.location.href="index.php";
    	    		}
    	   			else{
						if(temp=='disable'){
							alert("Your user name is disabled")
							window.location.href="login.php";        				
						}else{
							alert("Please try again")
							window.location.href="login.php";
						}        				
        			}
	   			}
    		};
    		req.open('GET', "login-check.php?username="+username+"&password="+password);
	     	req.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded; charset=UTF-8');
   			req.send(null);
   		}
}