function closeLoading() {
   if (document.getElementById) { 
      document.getElementById('closeloading').style.visibility = 'hidden';
   }
   else {
   	if (document.layers) {
   	    document.closeloading.visibility = 'hidden';
   	}
   	else { 
   	     document.all.closeloading.style.visibility = 'hidden';
   	}
   }
}

function showLoading(){
   document.getElementById("closeloading").style.display = "";
   document.getElementById("closeloading").style.visibility = "visible";
}