<script>
var ad_bimg_index = 1;
var ad_bimg_timeid;
var intout ;

$(document).ready(function(){
intout = window.setInterval("big_img()",3000);
});


function big_img(){
var num = $('div[id^=con_six_]').length;
setTab('six',ad_bimg_index,num);
ad_bimg_index++;
if(ad_bimg_index>num) {
ad_bimg_index = 1;
}
}

function bimg_act(i,a) {
ad_bimg_index = i;
if(a==1) {
intout = window.clearInterval(intout);
} else {
intout = window.setInterval("big_img()",5000);
}
}

function setTab(name,cursel,n){
 for(i=1;i<=n;i++){
  var menu=document.getElementById(name+i);
  if(menu == null || menu == 'undefined'){
  }else{
 var con=document.getElementById("con_"+name+"_"+i);
 menu.className=i==cursel?"hover":"";
 con.style.display=i==cursel?"block":"none";
  }
 }
}
</script>