// JavaScript Document
var HttPRequest = false;

function doCallAjax(url) 
{
	HttPRequest = false;
	if (window.XMLHttpRequest) 
	{ // Mozilla, Safari,...
		HttPRequest = new XMLHttpRequest();
		if (HttPRequest.overrideMimeType) 
		{
			HttPRequest.overrideMimeType('text/html');
		}
	} 
	else if (window.ActiveXObject) 
	{ // IE
		try 
		{
			HttPRequest = new ActiveXObject("Msxml2.XMLHTTP");
		} 
		catch (e) 
		{
			try 
			{
				HttPRequest = new ActiveXObject("Microsoft.XMLHTTP");
			} 
			catch (e) 
			{
				
			}
		}
	} 
		  
	if (!HttPRequest) 
	{
		alert('Cannot create XMLHTTP instance');
		return false;
	}
	
	var pmeters = "";
	HttPRequest.open('POST',url,true);
	HttPRequest.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	HttPRequest.setRequestHeader("Content-length", pmeters.length);
	HttPRequest.setRequestHeader("Connection", "close");
	HttPRequest.send(pmeters);

	HttPRequest.onreadystatechange = function()
	{
		if(HttPRequest.readyState == 3)  // Loading Request
		{
			document.getElementById("mySpan").innerHTML = "<center><img src=images/ajax-loader.gif><br>Loading...</center>";
		}

		if(HttPRequest.readyState == 4) // Return Request
		{			  
			document.getElementById('mySpan').innerHTML = HttPRequest.responseText;
		}				
	}
}