$(document).ready(function(){
	
	
	
	var winW = 630;
	var winH = 460;
	
	
	$("#switch").click(function(){
		if (document.body && document.body.offsetWidth) {
		 winW = document.body.offsetWidth;
		 winH = document.body.offsetHeight;
		}
		if (document.compatMode=='CSS1Compat' &&
		    document.documentElement &&
		    document.documentElement.offsetWidth ) {
		 winW = document.documentElement.offsetWidth;
		 winH = document.documentElement.offsetHeight;
		}
		if (window.innerWidth && window.innerHeight) {
		 winW = window.innerWidth;
		 winH = window.innerHeight;
		}
		$(this).addClass("on");
		$("#overlay").show().css("height",winH).css("width",winW);
		$("#overlayImg").show();
	});
	$("#overlay").click(function(){
		$("#switch").removeClass("on");
		$(this).hide();
		$("#overlayImg").hide();
	});
});