var getSilverlightVersion = function() {
	var SLVersion;
	try {
		try {
			var control = new ActiveXObject('AgControl.AgControl');
			if (control.IsVersionSupported("3.0"))
				SLVersion = 3; else
				if (control.IsVersionSupported("2.0"))
				SLVersion = 2; else
				SLVersion = 1;
			control = null;
		}
		catch (e) {
			var plugin = navigator.plugins["Silverlight Plug-In"];
			if (plugin) {
				if (plugin.description === "1.0.30226.2")

					SLVersion = 2; else

					SLVersion = parseInt(plugin.description[0]);
			}
			else
				SLVersion = 0;
		}
	}
	catch (e) {
		SLVersion = 0;
	}
	return SLVersion;
}

function GetXmlHttpObject() {
	if (window.XMLHttpRequest) {
		return new XMLHttpRequest();
	}
	if (window.ActiveXObject) {
		return new ActiveXObject("Microsoft.XMLHTTP");
	}
	return null;
}

var Ajax = new Object();
Ajax.Request = function(query) {
	this.isUpdating = true;
	this.request = GetXmlHttpObject(); //(window.XMLHttpRequest) ? new XMLHttpRequest() : new ActiveXObject("MSXML2.XMLHTTP");
	this.request.onreadystatechange = function() { Ajax.checkReadyState(); };

	this.request.open('GET', "/coletainfonavegador/scripts.aspx?" + query, true);
	this.request.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
	this.request.send(query);
}
Ajax.checkReadyState = function(_id) {
	switch (this.request.readyState) {
		case 1: break;
		case 2: break;
		case 3: break;
		case 4: break;
		//alert(this.request.responseText); 
	}
}
Ajax.Request("l=" + window.screen.availWidth + "&a=" + window.screen.availHeight + "&s=" + getSilverlightVersion());