function show(id) {
	  element = document.getElementById(id);
	  setDisplay(element, 'block');
	}

    function setDisplay(element, type) {
	  element.style.display = type;
	}
	
	function hide(id) {
	  element = document.getElementById(id);
	  timeout = setTimeout("setDisplay(element, 'none')",50);
	}
	
	function stay() {
	  if (timeout) { clearTimeout(timeout); }	  
	}