var currslid = 0;
var slidint;
function setfoc(id){
	
	document.getElementById("focpic").src = picarry[id];
	document.getElementById("foclnk").href = lnkarry[id];
	//document.getElementById("foclnk").innerHTML=ttlarry[id]
	currslid = id;
	for(i=0;i<4;i++){
		document.getElementById("tmb"+i).className = "thubpic";
	    document.getElementById("tmb"+i).innerHTML="<A href="+lnkarry[i]+" target=_blank><IMG height=47  src='"+picarry[i]+"' width=60></A>"

	};
	
	document.getElementById("tmb"+id).className ="thubpiccur";
	//document.getElementById("txtAd").value=id;
	focpic.style.visibility = "hidden";
	focpic.filters[0].Apply();
	if (focpic.style.visibility == "visible") {
		focpic.style.visibility = "hidden";
		focpic.filters.revealTrans.transition=23;
	}
	else {
		focpic.style.visibility = "visible";
		focpic.filters[0].transition=23;
	}
	focpic.filters[0].Play();
	
}
function setfoc1(id)
{
		document.getElementById("focpic").src = picarry[id];
	document.getElementById("foclnk").href = lnkarry[id];
	//document.getElementById("foclnk").innerHTML=ttlarry[id]
	currslid = id;
	for(i=0;i<4;i++){
		document.getElementById("tmb"+i).className = "thubpic";
	    document.getElementById("tmb"+i).innerHTML="<A href="+lnkarry[i]+" target=_blank><IMG height=47  src='"+picarry[i]+"' width=60></A>"

	};
	
	document.getElementById("tmb"+id).className ="thubpiccur";
	//document.getElementById("txtAd").value=id;
	focpic.style.visibility = "hidden";
	//focpic.filters[0].Apply();
	if (focpic.style.visibility == "visible") {
		focpic.style.visibility = "hidden";
		focpic.filters.revealTrans.transition=23;
	}
	else {
		focpic.style.visibility = "visible";
		focpic.filters[0].transition=23;
	}
	//focpic.filters[0].Play();	

}

var adTime=1;
var MyInterval=window.setInterval("ChangePic()",3000);
function ChangePic()
	{
				var how_many_ads = 4;    //你要有几个广告轮播
				var now = new Date()
				var sec = now.getSeconds()
				var ad = sec % how_many_ads;
				ad +=1;	
	
					setfoc(adTime-1);
					adTime=adTime+1;
					if (adTime>4)
						adTime=1
			
}