/* Ajax xmlHttpRequest code */

	function makeAjaxRequest() 
	{
		var httpRequest;
	
		if (window.XMLHttpRequest) 
		{ 
			
			// Mozilla, Safari, ...
			httpRequest = new XMLHttpRequest();
			if (httpRequest.overrideMimeType) 
			{
				httpRequest.overrideMimeType('text/xml');
			}
			
		} 
		else if (window.ActiveXObject) 
		{ 
			// IE
			try 
			{
				httpRequest = new ActiveXObject("Msxml2.XMLHTTP");
			} 
			catch (e) 
			{
				try 
				{
					httpRequest = new ActiveXObject("Microsoft.XMLHTTP");
				} 
				catch (e) 
				{
				}
			}
		}
	
		if (!httpRequest) 
		{
			alert('Giving up : Cannot create an XMLHTTP instance');
			return false;
		}
		
		return httpRequest;
	}