var bannerAD=new Array();                  
var bannerADlink=new Array();                  
var adNum=0;                  
   bannerAD[0]="images/exad1.gif";                  
   bannerADlink[0]="http://www.qzysw.com.cn/new0507/techbookstore/nr0.htm"; 
   bannerAD[1]="images/exad2.gif";                  
   bannerADlink[1]="http://www.qzysw.com.cn/new0507/techbookstore/scqd.htm";   

                 
                     
                  
   var preloadedimages=new Array();                  
   for (i=1;i<bannerAD.length;i++){                  
preloadedimages[i]=new Image();                  
      preloadedimages[i].src=bannerAD[i];                  
   }                  
                  
function setTransition(){                  
   if (document.all){                  
      bannerADrotator.filters.revealTrans.Transition=Math.floor(Math.random()*23);           

    
      bannerADrotator.filters.revealTrans.apply();                  
   }                  
}                  
                  
function playTransition(){                  
   if (document.all)                  
      bannerADrotator.filters.revealTrans.play()                  
}                  
                  
function nextAd(){                  
   if(adNum<bannerAD.length-1)adNum++ ;                  
      else adNum=0;                  
   setTransition();                  
   document.images.bannerADrotator.src=bannerAD[adNum];                  
   playTransition();                  
   theTimer=setTimeout("nextAd()", 6000);                  
}                  
                  
function jump2url(){                  
   jumpUrl=bannerADlink[adNum];                  
   jumpTarget='_blank';                  
   if (jumpUrl != ''){                  
      if (jumpTarget != '')window.open(jumpUrl,jumpTarget);                  
      else location.href=jumpUrl;                  
   }                  
}                  
function displayStatusMsg() {                   
   status=bannerADlink[adNum];                  
   document.returnValue = true;                  
}