function ToggleContent(obj)
{
	if(document.getElementById)
	{
	    var el = document.getElementById(obj);
	    var ar = document.getElementById("masterdiv").getElementsByTagName("span"); 
		
		if(el.style.display != "block")
		{
		    for (var i=0; i<ar.length; i++)
		    {
				if (ar[i].className=="contentSection") 
				    ar[i].style.display = "none";
			}
			
			el.style.display = "block";
		}
		//else
		//{
		//	el.style.display = "none";
		//}
	}
}