$(function(){
	var name = $('#float_scroll'); //滚动广告的ID
	name.css({})
	function showAd(time){
			setTimeout(function(){
				//$(name).show();原始
                $(name).hide();
                },time);
		}
	function hideAd(time){
			setTimeout(function(){
				$(name).hide();},time);
		}
	$('#oClose').click(function(){
			$(name).hide();
		});
	showAd(500); //页面加载完毕多久后显示广告
	//hideAd(31000); //页面加载完毕多久后关闭广告
	
	function scrollAd(){
		var offset = $(window).height()/2 - 200 + $(document).scrollTop();
		var oLeft = $(window).width()/2+480;
		$(name).animate({top:offset},{duration:200,queue:false});
		$(name).animate({left:oLeft},{duration:200,queue:false});
	}
	scrollAd();
	$(window).scroll(scrollAd);
	$(window).resize(scrollAd);
});