/* 
 * mug_ajax.js
 *  AJAX routines for MUMPS User's Group website
 *
 * Author:   John Willis <john@coherent-logic.com>
 * Created:  11/8/2010
 *
 */

function xmlhttp()
{
	var tmp_obj = "";

	if(window.XMLHttpRequest) {
		tmp_obj = new XMLHttpRequest();
 	}
	else {
		tmp_obj = new ActiveXObject("Microsoft.XMLHTTP");
	}

	return tmp_obj;
}

function request_data(url, div_id)
{
	var xmlHttp;
	xmlHttp = xmlhttp();

	xmlHttp.onreadystatechange = function ()
	{
		switch(xmlHttp.readyState) {
		case 4:
			var content = xmlHttp.responseText;
			document.getElementById(div_id).innerHTML = content;
			break;
		case 1:
			document.getElementById(div_id).innerHTML = '<img src="images/progress.gif" align="absmiddle">';
			break;
		}
	}

	xmlHttp.open("GET", url, true);
	xmlHttp.send(null);
}