/*Ajax*/

var xmlhttp = false;

//Check if we are using IE.
try 
	{
	//If the Javascript version is greater than 5.
	xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
	} 
catch (e) 
	{
	//If not, then use the older active x object.
	try 
		{
		//If we are using Internet Explorer.
		xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
		} 
	catch (E) 
		{
		//Else we must be using a non-IE browser.
		xmlhttp = false;
		}
	}

//If we are using a non-IE browser, create a javascript instance of the object.
if (!xmlhttp && typeof XMLHttpRequest != 'undefined') 
	{
	xmlhttp = new XMLHttpRequest();
	}

function makerequest(serverPage, objID) {
		
	var date = new Date();
	var timestamp = date.getTime();
	url = serverPage + "?time=" +timestamp;

	var obj = document.getElementById(objID);
	xmlhttp.open("GET", url);
	xmlhttp.onreadystatechange = function() {
		if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
			obj.innerHTML = xmlhttp.responseText;
			}
		}
	xmlhttp.send(null);
	}

function getdoc(serverPage, id, objID) {
		
	var date = new Date();
	var timestamp = date.getTime();
	url = serverPage + "?timestamp=" + timestamp +"&id=" + id;

	var obj = document.getElementById(objID);
	xmlhttp.open("GET", url);
	xmlhttp.onreadystatechange = function() {
		if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
			obj.innerHTML = xmlhttp.responseText;
			}
		}
	xmlhttp.send(null);
	}
	
/*View Frame*/
function viewOverlay(serverPage, id, objID){

	var date = new Date();
	var timestamp = date.getTime();
	url = serverPage + "?id=" + id + "&timestamp=" + timestamp;

	var obj = document.getElementById(objID);
	obj.style.visibility = "visible";
	xmlhttp.open("GET", url);
	xmlhttp.onreadystatechange = function() {
		if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
			obj.innerHTML = xmlhttp.responseText;
			}
		}
	xmlhttp.send(null);
	}
	
/*Closes overlay*/
function closeOverlay(objID){
	var obj = document.getElementById(objID);
	obj.style.visibility = "hidden";
	}