function togPlus(objDiv,objImg)
{
	if(document.getElementById(objDiv))
	{
		var myElement = document.getElementById(objDiv);    
		if (myElement.style.display == "none")
		{
      myElement.style.display = "block";
      objImg.src = "images/collapse.gif";
		}
		else
		{
      myElement.style.display = "none";
      objImg.src = "images/expand.gif";
		}
	}
}