jQuery Preloader

jQuery Page Preloader

.loader{
	backgound: none repeat scroll 0 0 #ffffff;
	bottom: 0;
	height: 100%;
	left: 0;
	position: fixed;
	right: 0;
	top: 0;
	width: 100%;
	z-index: 9999;
}
.loader_inner{
	background-image: url("../img/");
	background-repeat: no-repeat;
	background-position: center center;
	background-color: #fff;
	height: 60px;
	width: 60px;
	margin-top: -30px;
	margin-left: -30px;
	left: 50%;
	top: 50%;
	position: absolute;
}

function heightDetect(){
		$(".main_head").css("height", $(window).height());
	};
	//Делает фон на весь экран
	heightDetect;
	$(window).resize(function(){
		heightDetect();
	});