function UploadMouseUp(obj)
{ 
   //alert ("MouseUp2");
   // if (window.event) 
   // { 
   //    e = window.event;  
   // }
   //var button = obj.srcElement? obj.srcElement : obj.target; 
   var button=obj;
//var button=(window.event.target) ? window.event.target : window.event.srcElement;

   //alert (button);
   button.disabled=true;
   button.value = "Uploading...";   
}