// JavaScript Document
var n=0;
var nums=5    ;
var showNum = document.getElementById("thumbBtn");
var autoStart;
function Mea(value){
n=value;
if(navigator.appName=="Microsoft Internet Explorer"){with(mainimg){filters[0].apply();}}
for(var i=0;i<nums;i++){
  showNum.getElementsByTagName("div")[i].className=value==i?'on':'off';
  document.getElementById("mainimg").getElementsByTagName("div")[i].className=value==i?'dis':'undis';
}
if(navigator.appName=="Microsoft Internet Explorer"){with(mainimg){filters[0].play();}}
}
function clearauto(){clearInterval(autoStart)}
function setauto(){ autoStart=setInterval("auto(n)", 5000)}
function auto(){ n++; if(n>(nums-1))n=0; Mea(n);} 
//setauto(); 

window.setTimeout(setauto,5000)