var xiaotuon=new Array();
     var xiaotuof=new Array();
     for (i=0;i<2;i++){
       xiaotuon[i]=new Image();
       xiaotuon[i].src="images_nmc/on_0"+(i+1)+".jpg";
     }
     for (i=0;i<2;i++){
       xiaotuof[i]=new Image();
       xiaotuof[i].src="images_nmc/off_0"+(i+1)+".jpg";
     }
     
     function chagn(na,n,divNam){
      for (i=0;i<2;i++){
       document.getElementById("xiaotu"+i).src=xiaotuof[i].src
       document.getElementById("digi-tit"+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>2){
        chagnN=0;
       }
       if (chagnN==0){
        
        chagn('xiaotu0',0,'digi-tit0');
       }
       if (chagnN==1){
        chagn('xiaotu1',1,'digi-tit1');
       }
     }
     
     function changekinds(){
       chagnN=-1;
       setIDinter=setInterval("setInter()",5000);
     }
     
     function clears(){
       
       clearInterval(setIDinter);
     }