 {
			var windowX = window.screenLeft;
			var windowY = window.screenTop;
			var windowW = window.innerWidth || document.documentElement.clientWidth || document.body.clientWidth;
			var windowH = window.innerHeight || document.documentElement.clientHeight || document.body.clientHeight;

			var pixelRatio = window.devicePixelRatio ? window.devicePixelRatio : 1;
			var screenW = window.screen.width * pixelRatio;
			var screenH = window.screen.height * pixelRatio;

			var params = '{"x": '+windowX+', "y": '+wi