// JavaScript Document
// these functions control the menuNav

		function showMenu(x){
			document.getElementById(x).style['visibility'] = 'visible';
			//document.getElementById('distribution').style.backgroundImage = "url('images/distributionButOver.gif')";
		}
		
		function hideMenu(x){
			document.getElementById(x).style['visibility'] = 'hidden';
		}
		
		function rollOn(x){
			document.getElementById(x).src = "images/"+x+"ButOn.gif";
		}
		
		function rollOff(x){
			document.getElementById(x).src = "images/"+x+"But.gif";
		}
		
		function rollOn_fr(x){
			document.getElementById(x).src = "images/fr_"+x+"ButOn.gif";
		}
		
		function rollOff_fr(x){
			document.getElementById(x).src = "images/fr_"+x+"But.gif";
		}