function ExpGroupBy(formObj)
{
  if ((browseris.w3c) && (!browseris.ie)) {
	  document.all=document.getElementsByTagName("*");
  }

  docElts=document.all;
  numElts=docElts.length;
  images=formObj.getElementsByTagName("IMG");
  img=images[0];
  srcPath=img.src;
  index=srcPath.lastIndexOf("/");
  imgName=srcPath.slice(index+1);
  if (imgName=='plus.gif')
  {
	  fOpen=true;
	  displayStr="";
	  img.src='/_layouts/images/minus.gif';
  }
  else
  {
	  fOpen=false;
	  displayStr="none";
	  img.src='/_layouts/images/plus.gif';
  }
  oldName=img.name;
  img.name=img.alt;
  img.alt=oldName;
  spanNode=img;
  while(spanNode !=null)
  {
	  spanNode=spanNode.parentNode;
	  if (spanNode !=null &&
		  spanNode.id !=null &&
		  spanNode.id.length > 5 &&
		  spanNode.id.substr(0, 5)=="group")
		  break;
  }
  parentNode=spanNode;
  while(parentNode !=null)
  {
	  parentNode=parentNode.parentNode;
	  if (parentNode !=null &&
		  parentNode.tagName=="TABLE")
		  break;
  }
  lastNode=null;
  if (parentNode !=null)
  {
	  lastNode=parentNode.lastChild;
	  if (lastNode !=null && lastNode.tagName=="TBODY")
		  lastNode=lastNode.lastChild;
	  if (lastNode !=null && lastNode.tagName=="TR" && lastNode.lastChild !=null)
		  lastNode=lastNode.lastChild;
  }
  for(var i=0;i<numElts;i++)
  {
	  var childObj=docElts[i];
	  if (childObj==spanNode)
		  break;
  }
  ID=spanNode.id.slice(5);
  for(var j=i+1; j<numElts; j++)
  {
	  var childObj=docElts[j];
	  if (childObj.id.length > 5 &&
		  childObj.id.substr(0, 5)=="group")
	  {
		  curID=childObj.id.slice(5);
		  if (curID <=ID)
			  return;
	  }
	  parentNode=childObj;
	  while(parentNode !=null)
	  {
		  parentNode=parentNode.parentElement;
		  if (parentNode==spanNode)
			  break;
	  }
	  if (parentNode==spanNode)
		  continue;
	  if (childObj !=img &&
		  childObj.tagName=="IMG" &&
		  childObj.src &&
		  childObj.src.slice(childObj.src.length - 25)=='/_layouts/images/plus.gif')
	  {
		  childObj.src='/_layouts/images/minus.gif';
		  oldName=childObj.name;
		  childObj.name=childObj.alt;
		  childObj.alt=oldName;
	  }
	  if (childObj.tagName==spanNode.tagName &&
		  childObj.id !="footer")
	  {
		  childObj.style.display=displayStr;
	  }
	  if ((childObj.tagName=="TABLE" && lastNode==null) || childObj==lastNode)
		  break;
  }
}