Util= {
	showMilkGlass: function() {
		var dimensions= Util.getWindowSize();
		document.getElementById("milkglass").style.height= dimensions[1]+"px";
	},
	getWindowSize: function(){
		var xScroll, yScroll;

		if (window.innerHeight && window.scrollMaxY) {
			xScroll = window.innerWidth + window.scrollMaxX;
			yScroll = window.innerHeight + window.scrollMaxY;
		} else if (document.body.scrollHeight > document.body.offsetHeight) {
			xScroll = document.body.scrollWidth;
			yScroll = document.body.scrollHeight;
		} else if(document.body) { 
			xScroll = document.body.offsetWidth;
			yScroll = document.body.offsetHeight;
		}
		
		var windowWidth, windowHeight;
		if (self.innerHeight) {
			if(document.documentElement.clientWidth){
				windowWidth = document.documentElement.clientWidth;
			} else {
				windowWidth = self.innerWidth;
			}
			windowHeight = self.innerHeight;
		} else if (document.documentElement && document.documentElement.clientHeight) {
			windowWidth = document.documentElement.clientWidth;
			windowHeight = document.documentElement.clientHeight;
		} else if (document.body) {
			windowWidth = document.body.clientWidth;
			windowHeight = document.body.clientHeight;
		}

		if(yScroll < windowHeight) {
			pageHeight = windowHeight;
		} else {
			pageHeight = yScroll;
		}

		if(xScroll < windowWidth) {
			pageWidth = xScroll;
		} else {
			pageWidth = windowWidth;
		}

		var arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight);
		return arrayPageSize;
	}
}