function DoubleClickPreventionA(lnk, lbl)
{
  lnk.style.display = "none";
  var tmp = document.getElementById(lbl);
  if (tmp != null) tmp.style.display = "inline";
}
function DoubleClickPreventionA(lnk, lbl, img)
{
  lnk.style.display = "none";
  var tmp = document.getElementById(lbl);
  if (tmp != null) tmp.style.display = "inline";
  tmp = document.images[img];
  if (tmp != null) setTimeout("document.images['" + img + "'].src='images/ButtonProcessingIcon.gif';",100);
}

var DoublePostPreventionFlag = false;
function DoublePostPrevention(lnk, lbl, img)
{
  if (DoublePostPreventionFlag) { alert("Please do not double post."); return false; }
  DoublePostPreventionFlag = true;
  var tmp = document.getElementById(lnk);
  if (tmp != null) tmp.style.display = "none";
  
  tmp = document.getElementById(lbl);
  if (tmp != null) tmp.style.display = "inline";
  
  tmp = document.images[img];
  if (tmp != null) setTimeout("document.images['" + img + "'].src='images/ButtonProcessingIcon.gif';",100);
//  alert(lnk.substring(0,1) + lnk.substring(1,lnk.length).split("_").join("$"));
  __doPostBack(lnk.substring(0,1) + lnk.substring(1,lnk.length).split("_").join("$"),'');
  return true;
}