function createAjaxHandler()
{
	var xmlHttp;
	try {
		// Firefox, Opera 8.0+, Safari
		xmlHttp = new XMLHttpRequest();
	} catch (e) {
		// Internet Explorer
		try {
			xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try {
				xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e) {
				alert("Your browser does not support AJAX!");
				return null;
			}
		}
	}
	
	return xmlHttp;
}

function ajaxReplacer(tagId, requestUrl) {
	ajaxReplacer(tagId, requestUrl, 0);
}

function ajaxReplacer(tagId, requestUrl, minHeight) {
	var xmlHttp = createAjaxHandler();
	if (xmlHttp != null) {
		var holder = document.getElementById(tagId);
		var height = Math.max(holder.offsetHeight / 2, minHeight);
		holder.innerHTML = "<div style=\"height: " + height + "px;\">&nbsp;</div><div style=\"text-align: center\"><img align=\"center\" src=\"/SchwinnTemplates/images/loading.gif\" width=\"32\" height=\"32\" alt=\"Loading content...\" /></div><div style=\"height: " + height + "px;\">&nbsp;</div>";
		
		xmlHttp.onreadystatechange = function() {
			if (xmlHttp.readyState == 4) {
				document.getElementById(tagId).innerHTML = xmlHttp.responseText;
			}
		};
		
		xmlHttp.open("GET", requestUrl, true);
		xmlHttp.send(null);
	}
}