[jQuery] JQuery countdown problom

[Tobin]

I have wirted a countdown code like this:

 jQuery.extend({
  buildprocess: function(seconds,target,json) {
       var self=this;
      $("#"+target).append("<li id=\"bing_"+json.t+"_"+json.c
+"\">"+json.t+json.l+"level<span id=\"bing_"+json.t+"_"+json.c+"_1\"></
span></li>")
      var ___timer=setInterval(CountDown,1000)
      function CountDown()
      {
         $("#bing_"+json.t+"_"+json.c
+"_1").html(__Seconds2Time(seconds));
         seconds--;
         if(seconds<=0)
         {
         clearInterval(___timer);
         $("#bing_"+json.t+"_"+json.c+"").remove();
         }
      }
  }
});
when i run it like this:
$.buildprocess(6,"ul1",{w:300,s:240,i:90,f:180,t:1004,c:1,l:1,dt:10});
it works well
but when i run it like this:
$.buildprocess(6,"ul1",{w:300,s:240,i:90,f:180,t:1004,c:1,l:1,dt:10});
$.buildprocess(12,"ul2",{w:300,s:240,i:90,f:180,t:1004,c:1,l:1,dt:
10});
it don't works well
has someone help me for this problem?????