function shows(obj) {
if (document.getElementById(obj)) {

	var el = document.getElementById(obj); //el is now whichever object you are passing to this function
			el.style.top = '36px'; // move it to the proper place	
		}	
}
	
function hides(obj) {

if (document.getElementById(obj)) {
	var el = document.getElementById(obj); //el is now whichever object you are passing to this function
		el.style.top = ''; // put it back to the default placement
		 }
}