// Script 13.2 - ajax.js

/*	This page creates an Ajax request object.
 *	This page is included by other pages that 
 *	need to perform an XMLHttpRequest.
 */

// Initialize the object:
function returnAjaxConn ()
	{
		
		
	var ajax = false;
	
	// Create the object...
	
	// Choose object type based upon what's supported:
	if (window.XMLHttpRequest) {
	
		// IE 7, Mozilla, Safari, Firefox, Opera, most browsers:
		ajax = new XMLHttpRequest();
		
	} else if (window.ActiveXObject) { // Older IE browsers
	
		// Create type Msxml2.XMLHTTP, if possible:
		try {
			ajax = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e1) { // Create the older type instead:
			try {
				ajax = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e2) { }
		}
		
	}
	
	return ajax;
	// Send an alert if the object wasn't created.
	if (!ajax) {
		alert ('Some page functionality is unavailable.');
	}

	}