//写入cookies函数
function SetCookie(name,value)//两个参数，一个是cookie的名子，一个是值
{
    var Days = 1; //此 cookie 将被保存 30 天
    var exp  = new Date();    //new Date("December 31, 9998");
    exp.setTime(exp.getTime() + Days*24*60*60*1000);
    document.cookie = name + "="+ escape (value) + ";expires=" + exp.toGMTString();
}
function getCookie(name)//取cookies函数        
{
    var arr = document.cookie.match(new RegExp("(^| )"+name+"=([^;]*)(;|$)"));
     if(arr != null) return unescape(arr[2]); return null;

}
function delCookie(name)//删除cookie
{
    var exp = new Date();
    exp.setTime(exp.getTime() - 1);
    var cval=getCookie(name);
    if(cval!=null) document.cookie= name + "="+cval+";expires="+exp.toGMTString();
}

//关闭广告命令
function HiddenAd()
{ if (ad.style.visibility=="visible"){ 
	ad.style.visibility='hidden';
	SetCookie ("closead", "ok")
	}
}

function initEcAd() {
  var k = getCookie('closead')
  if (k == null) {
	document.all.ad.style.visibility = 'visible';
	document.all.ad.style.position = 'absolute';
  }else{
	document.all.ad.style.visibility = 'hidden';
	document.all.ad.style.position = 'absolute';
  }
}

document.write('<div id="ad" style="position:absolute;visibility: visible;top:0px;"><a href="images/worknet.html" target="_blank"><img src="images/fu008.gif" border="0" width="150" height="150"></a><br><a href=\"javascript:HiddenAd();\"><img src=images/closeAd.gif border="0"></a></div> ');
var x = 50,y = 60 
var xin = true, yin = true 
var step = 1 
var delay = 10 
var obj=document.getElementById("ad") 
function floatAD() { 
	var L=T=0 
	var R= document.body.clientWidth-obj.offsetWidth 
	var B = document.body.clientHeight-obj.offsetHeight 
	obj.style.left = x + document.body.scrollLeft 
	obj.style.top = y + document.body.scrollTop 
	x = x + step*(xin?1:-1) 
	if (x < L) { xin = true; x = L} 
	if (x > R){ xin = false; x = R} 
	y = y + step*(yin?1:-1) 
	if (y < T) { yin = true; y = T } 
	if (y > B) { yin = false; y = B } 
} 
var itl= setInterval("floatAD()", delay) 
obj.onmouseover=function(){clearInterval(itl)} 
obj.onmouseout=function(){itl=setInterval("floatAD()", delay)} 

initEcAd();