var xiaotuon=new Array();
     var xiaotuof=new Array();
     for (i=0;i<3;i++){
       xiaotuon[i]=new Image();
       xiaotuon[i].src="http://img10.2688.com/Channel/Appliance/xiaotuww_on_0"+(i+1)+".gif";
     }
     for (i=0;i<3;i++){
       xiaotuof[i]=new Image();
       xiaotuof[i].src="http://img10.2688.com/Channel/Appliance/xiaotuww_of_0"+(i+1)+".gif";
     }
     
     function chagn(na,n,divNam){
      for (i=0;i<3;i++){
       document.getElementById("xiaotu"+i).src=xiaotuof[i].src
       document.getElementById("paihang"+i).style.display="none";
      }
      document.getElementById(na).src=xiaotuon[n].src
      document.getElementById(divNam).style.display="block";
     }
     function clearsgetzz(){
       
       clearInterval(setIDgetzzyan);
     }
     
     
     var setIDinter;
     var chagnN=0;
     function setInter(){
       chagnN++;
       if (chagnN>3){
        chagnN=0;
       }
       if (chagnN==0){
        
        chagn('xiaotu0',0,'paihang0');
       }
       if (chagnN==1){
        chagn('xiaotu1',1,'paihang1');
       }
       if (chagnN==2){
        chagn('xiaotu2',2,'paihang2');
       }
     }
     
     function gehoulaijia(){
       chagnN=-1;
       setIDinter=setInterval("setInter()",3000);
     }
     
     function clears(){
       
       clearInterval(setIDinter);
     }