window.onresize = resize;		
	var wds;
if(navigator.appName.indexOf("Microsoft Internet Explorer")>=0 && navigator.appVersion.indexOf("MSIE 7.0")==-1) wds = 930;
	else wds = 926;
	
function showMenu(id){
	document.getElementById(id).style.display = 'block';
	
	if(navigator.appName.indexOf("Microsoft Internet Explorer")>=0 && navigator.appVersion.indexOf("MSIE 7.0")==-1){
		document.getElementById(id).style.margin = " 0 0 0 -465px";
	}	
	else {
		document.getElementById(id).style.margin = " 0 0 0 -463px";
	}
		
	if (document.body.offsetWidth == wds)
		document.getElementById(id).style.margin = "0";
	else	{
	if(navigator.appName.indexOf("Microsoft Internet Explorer")>=0 && navigator.appVersion.indexOf("MSIE 7.0")==-1) 
		document.getElementById(id).style.margin = " 0 0 0 -465px";
	else document.getElementById(id).style.margin = " 0 0 0 -463px";
	}			
	document.getElementById('all-nav').style.background = "#005184";
	}
	
function hideMenu(id){
	document.getElementById(id).style.display = 'none';
	document.getElementById('all-nav').style.background = "#005184 url(_img/bg-nav.jpg) bottom left repeat-x";
	}	
function resize() {
	
		if (document.body.offsetWidth == wds)
		{
			document.getElementById('menu_1').style.left = "0";
			document.getElementById('menu_2').style.left = "0";
			document.getElementById('menu_3').style.left = "0";
			document.getElementById('menu_4').style.left = "0";
			}
		else 	{
			document.getElementById('menu_1').style.left = "50%";
			document.getElementById('menu_2').style.left = "50%";
			document.getElementById('menu_3').style.left = "50%";
			document.getElementById('menu_4').style.left = "50%";
		}
	}