/*  anzeigen eines bestimmten elements by id */
function showElementByID(id)
{
    var elem = document.getElementById(id);
	var all_elems = document.getElementsByName('titel');
		
    if (elem)
    {	
		for (var i=0; i<all_elems.length; i++)
			{
			all_elems[i].style.display = "none";
			
			//elemActive.style.display = "none";
			}
			
		elem.style.display = "inline";
    }
    	
}

/*  anzeigen eines bestimmten elements by id */
function hideElementByID(id)
{
    var elem = document.getElementById(id);
		
    if (elem)
    {	
		elem.style.display = "none";
    }
    	
}