function hideBlock(blockID) 
	{
		var thisBlock = document.getElementById("d" + blockID);
		thisBlock.style.display = "none";		
	}

	function showBlock(blockID) 
	{		
	 
	    var thisBlock = document.getElementById("d" + blockID);
	 
		if ( thisBlock.style.display == "none") 
		{	
			thisBlock.style.display = "block";
		}
		else 
		{
			hideBlock(blockID);
		}
	
	
	}
	

	function hideAll() 
	{
		
		
		DIVs=document.getElementsByTagName("div");

		for (i=0;i<DIVs.length;i++) 
		{		
			if(Left(DIVs[i].id, 1)=='d') 	
			{
				DIVs[i].style.display="none";
			}
		}
		
	}

	function showBlocks(IndexNo) 
	{	
		
		
		var levelarray=IndexNo.split(".");

		for (i=0;i<levelarray.length;i++) 
		{	
		    //alert(levelarray[i]);	
			showBlock(levelarray[i]);					
		}
	}