var roll_image = new Array;
var image_link = new Array;
var small_img = new Array;
var ad_text = new Array;
 
roll_image[0] = 'images/01.jpg';
image_link[0] = 'http://www.zrexam.net/class/sdclass.html';
small_img[0] = 'images/main_flash_button1_on.gif';
ad_text[0] ='2010年山东省教师招聘培训班火热招生中...';

roll_image[1] = 'images/02.jpg';
image_link[1] = 'http://www.zrexam.net/book/booklist.jsp?subjects=354';
small_img[1] = 'images/main_flash_button2_on.gif';
ad_text[1] ='2010云南省特岗教师考试专用教材现已上线';

roll_image[2] = 'images/03.jpg';
image_link[2] = 'http://www.zrexam.net/';
small_img[2] = 'images/main_flash_button3_on.gif';
 ad_text[2] ='热烈祝贺山东省教师考试网上线';

roll_image[3] = 'images/04.jpg';
image_link[3] = 'http://www.zrexam.net/huodong/hd1.html';
small_img[3] = 'images/main_flash_button4_on.gif';
  ad_text[3] ='中人教育网新版网站上线600万回馈广大用户';
var cliImg = '';
var cliImgSrc = '';
var imgNo = Math.round(Math.random() * 7);

var interval = 3000;
var setTime = '';

function click_simg(ci, no){
 var pImg = document.all.bigimg;
 var pLink = document.all.imglink;

 if(cliImg == '') {
  cliImg = ci;
  cliImgSrc = ci.src;
  ci.src = small_img[no];
  imgNo=no;
  pImg.src =roll_image[no];
  pLink.href = image_link[no];
 
 } else if(cliImg != ci) {
  cliImg.src = cliImgSrc;
  cliImg = ci;
  cliImgSrc = ci.src;
  ci.src = small_img[no];
  imgNo=no;
  pImg.src =roll_image[no];
  pLink.href = image_link[no];

 }
 clearTimeout(setTime);
 setTime=setTimeout("rotate()",interval);
}

function rotate(){
 imgNo = (imgNo >= 3) ? 0 : imgNo+1;
 var ci = eval('document.all.num_img'+imgNo);
   var adt=document.getElementById("adtest");
 document.all.bigimg.filters.blendTrans.apply();
 document.all.imglink.href=image_link[imgNo];
 document.all.bigimg.src=roll_image[imgNo];
 document.all.bigimg.filters.blendTrans.play();
 
 if(cliImg == '') {
  cliImg = ci;
  cliImgSrc = ci.src;
  ci.src = small_img[imgNo];
   
 } else if(cliImg != ci) {
  cliImg.src = cliImgSrc;
  cliImg = ci;
  cliImgSrc = ci.src;
  ci.src = small_img[imgNo];
    
 }
adt.innerHTML=ad_text[imgNo];
 setTime=setTimeout("rotate()",interval);
}