function tierMenu(objMenu,objImage)
{

   if (objMenu.style.display == "none")
   {
       objMenu.style.display = "";
       objImage.src = "../images/minus.gif";
   }
   else 
   {
      objMenu.style.display = "none";
      objImage.src = "../images/plus.gif";
   }
}

function start(page,title)
{
	window.open(page, title, "toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,height=460,width=725");
	
}


function tierMenu2(objMenu,objImage)
{
   if(document.getElementById(objMenu).style.display=="none")
   {
   	for(var myfc=0;myfc<=1;myfc++)
	{
		document.getElementById('menu'+myfc).style.display = "none";
		document.getElementById('img'+myfc).src = "../images/rarr.gif";
   	}
	document.getElementById(objMenu).style.display = "";
	document.getElementById(objImage).src = "../images/darr.gif";
   }
   else
   {
      document.getElementById(objMenu).style.display = "none";
      document.getElementById(objImage).src = "../images/rarr.gif";
   }
}

function tierMenu3(objMenu,objImage)
{
   if(document.getElementById(objMenu).style.display=="none")
   {
   	for(var mycourse=0;mycourse<=1;mycourse++)
	{
		document.getElementById('menu'+mycourse).style.display = "none";
		document.getElementById('img'+mycourse).src = "../images/plus.gif";
   	}
	document.getElementById(objMenu).style.display = "";
	document.getElementById(objImage).src = "../images/minus.gif";
   }
   else
   {
      document.getElementById(objMenu).style.display = "none";
      document.getElementById(objImage).src = "../images/plus.gif";
   }
}