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Math.round(Math.random()*10000)

alert(Math.round(Math.random()*10000))

   var item = $("input:radio:checked");  
   var checkedvalue = item.val();
   var fqq = $('#FVotedQQ').val();
   var frominvite = $('#frominvite').val();  
   var random = Math.round(Math.random()*10000);
   var getaward = $.ajax({
        url: "http://***.act.***.com/c/vote/add",
        data:"FVotedQQ="+fqq+"&kindid="+checkedvalue+"&frominvite="+frominvite+"random="+random,
      async: false
        }).responseText;
    eval('var data = '+getaward);    
  alert(data.message);