var isStart=true;
var nn;
var tt;
nn=1;
setTimeout('change_img()',4000);

function change_img()
{
if(isStart){
 nn++;
 if(nn>7) nn=1;
 setFocus(nn);
 }else{
 tt=setTimeout('change_img()',100);
 }
}
function setFocus(i)
{
 if(tt) clearTimeout(tt);
 nn = i;
 selectLayer1(i);
 tt=setTimeout('change_img()',4000);
}
function selectLayer1(i)
{
	 for(var j=1; j<8;j++){
	 document.getElementById("bbs_s"+j).style.display="none";
	 document.getElementById("aas_s"+j).className="current2"
	 }
	 if(i==1){document.getElementById("bbs_s"+i).style.left}
	document.getElementById("bbs_s"+i).style.display="block";
    document.getElementById("aas_s"+i).className="current";
}

function getifo(i){
	for(var n=1;n<=3;n++){
		document.getElementById("sp_zq"+n).className="";
		document.getElementById("outsee_0"+n).style.display="none";
		}
		document.getElementById("sp_zq"+i).className="current";
		document.getElementById("outsee_0"+i).style.display="block";
		
	}
function getmeizi(i){
	for(var n=1;n<=2;n++){
		document.getElementById("seeword_"+n).className="noseeword";
		document.getElementById("seemeizi_"+n).style.display="none";
		}
		document.getElementById("seeword_"+i).className="seeword";
		document.getElementById("seemeizi_"+i).style.display="block";
		
	}
function gethot(i){
	for(var n=1;n<=3;n++){
		document.getElementById("reci_0"+n).className="outhouse";
		document.getElementById("yingyin_0"+n).style.display="none";
		}
		document.getElementById("reci_0"+i).className="onhouseest";
		document.getElementById("yingyin_0"+i).style.display="block";
		
	}
function getpate(i){
	for(var n=1;n<=2;n++){
		document.getElementById("onpate_"+n).className="depate_out";
		document.getElementById("survey_"+n).style.display="none";
		}
		document.getElementById("onpate_"+i).className="depate_over";
		document.getElementById("survey_"+i).style.display="block";
		if(i==1){document.getElementById("onpate_ul").className="ulds_04"}
		if(i==2){document.getElementById("onpate_ul").className="ulds_042"}
	}