function hide(obj)
	{
		var el = document.getElementById(obj);
		
		if ( el.style.display == "none" ) 
		{
			// show the element at the mouse pointer
			el.style.display = '';
			
		}else {
			// make the element disappear
			el.style.display = 'none';
		}// end if else !=
	}// end functon showHide()