function showMenu() {
	 	if((document.getElementById) && (document.getElementById('navbg')!=null)) {
			var myElement = document.getElementById('navbg');
		 	if ((myElement.style) && (myElement.style.display!=null)) {
			    if(myElement.style.display == 'none'){
					document.getElementById('navbg').style.display = 'block';
				}else {
					document.getElementById('navbg').style.display = 'block';
    			}
  			}else {
				return;
  			}
		}else {
		  return;
		}
	 	if((document.getElementById) && (document.getElementById('navbg2')!=null)) {
			var myElement2 = document.getElementById('navbg2');
		 	if ((myElement2.style) && (myElement2.style.display!=null)) {
			    if(myElement2.style.display == 'none'){
					document.getElementById('navbg2').style.display = 'block';
				}else {
					document.getElementById('navbg2').style.display = 'block';
    			}
  			}else {
				return;
  			}
		}else {
		  return;
		}
		var i;
		for (i = 1; i <= 7; i++){
			var test = 'nav0' + i;
			if((document.getElementById) && (document.getElementById(test)!=null)) {
				var myElement3 = document.getElementById(test);
				if ((myElement3.style) && (myElement3.style.display!=null)) {
					if(myElement3.style.display == 'none'){
						document.getElementById(test).style.display = 'block';
					}else {
						document.getElementById(test).style.display = 'block';
					}
				}else {
					return;
				}
			}else {
			  return;
			}
		}
	}
	function hideMenu() {
		if (document.getElementById) {
			document.getElementById('navbg').style.display = 'none';
			document.getElementById('navbg2').style.display = 'none';
			var theMenu = document.getElementById('nav');
			for (var i=0; i<theMenu.childNodes.length; i++){
				if (theMenu.childNodes[i].nodeName.toLowerCase() == 'li'){
					if (theMenu.childNodes[i].className == 'off') {
						theMenu.childNodes[i].style.display='none';
					}
					else {
						theMenu.childNodes[i].style.display='block'; // this item is 'on'
					}
				}
			}
		}
	}