// 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
var ajax = false;

// Create the object...

// Choose object type based upon what's supported:
if(window.XMLHttpRequest) {
	ajax = new XMLHttpRequest();
	
}else if (window.ActiveXObject) {
	
    // 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) { }
    }

}

// Send an alert if the object wasn't created.
if(!ajax) {
	alert('Some page functionality is unavailable.');
}