/*广告图片悬停5秒*/
var adSelector;

/*初始化浮动窗口*/
function initAd(width,top,selector){
	try{
	adSelector=selector;
	var target = document.getElementById(adSelector);
	if(!target){
		return;
	}
	
	var x= document.body.clientWidth-6;
	var div_top_x = (x-width)/2;
	target.style.left=div_top_x+"px";
	target.style.top = top+"px";
	target.style.display='block';
	window.setTimeout(fadeOutAd,5000);

	}catch(e){
		alert(e);
	}
}

function fadeOutAd(){
	document.getElementById(adSelector).style.display='none';
}

/*改变大小的方式隐藏*/
/*每次改变的宽度或高度*/
var _x=4;
var _y=6;
var stop=false;//隐藏完毕，停止标志
var iId;//迭代器id
function slideOutAd(){
	iId = window.setInterval(doSlide,10);
}

function doSlide(){
	var _w =$(adSelector).width();
	var _h =$(adSelector).height();
	if(_w-_x<=0|| _h-_y<=0){
		$(adSelector).hide();
		window.clearInterval(iId);
	}
	$(adSelector).width(_w-_x);
	$(adSelector).height(_h-_y);
}

function showLeftAd(id){
	var x= document.body.clientWidth-6;
	var div = document.getElementById(id);
	div.style.top = 0;
	div.style.right=(x+980)/2+"px";
	div.style.display="block";
}