function dropDownLv1(a, b){
	// Hide all menus
	var i=0;
	var ii=0;
	var t='';
	while (document.getElementById('Lv1-'+i))
		{
		/*
		//alert('Lv1-'+i);
		while (document.getElementById('Lv2-'+i+'-'+ii))
			{
			//alert('Lv2-'+i+'-'+ii);
			document.getElementById('Lv2-'+i+'-'+ii).style.display = "none";
			ii++;
			}
		*/
		
		document.getElementById('Lv1-'+i).style.display = "none";
		
		i++;
		var ii=0;
		}
		
	// Show the selected menu
	document.getElementById('Lv1-'+a).style.display = "block";
	
	// Set the cookie
	setCookie('_Lv1', 'Lv1-'+a);
}

function dropDownLv2(a, b){
	// Hide all menus
	var i=0;
	while (document.getElementById('Lv2-'+a+'-'+i)){
		document.getElementById('Lv2-'+a+'-'+i).style.display = "none";
		i++;
	}
	// Show the selected menu
	document.getElementById('Lv2-'+a+'-'+b).style.display = "block";
}

function goNav(url)
	{
	/*
	 * USAGE
	 * url - path to go to
	 */
	document.location.href = url;
	}

function setCookie(name, value, expires, path, domain, secure) 
	{
	/*
	 * USAGE
	 * name - name of the cookie
	 * value - value of the cookie
	 * [expires] - expiration date of the cookie (defaults to end of current session)
	 * [path] - path for which the cookie is valid (defaults to path of calling document)
	 * [domain] - domain for which the cookie is valid (defaults to domain of calling document)
	 * [secure] - Boolean value indicating if the cookie transmission requires a secure transmission an argument defaults when it is assigned null as a placeholder a null placeholder is not required for trailing omitted arguments
	 */
	var curCookie = name + "=" + escape(value) +
		((expires) ? "; expires=" + expires.toGMTString() : "") +
		((path) ? "; path=" + path : "") +
		((domain) ? "; domain=" + domain : "") +
		((secure) ? "; secure" : "");
	document.cookie = curCookie;
	}


function getCookie(name) 
	{
	/*
	 * USAGE
	 * name - name of the desired cookie
	 * return string containing value of specified cookie or null
	 * if cookie does not exist
	 */	
	var dc = document.cookie;
	var prefix = name + "=";
	var begin = dc.indexOf("; " + prefix);
	if (begin == -1) {
		begin = dc.indexOf(prefix);
		if (begin != 0) return null;
	} else
	begin += 2;
	var end = document.cookie.indexOf(";", begin);
	if (end == -1)
		end = dc.length;
	return unescape(dc.substring(begin + prefix.length, end));
	}

function deleteCookie(name, path, domain) 
	{
	/*
	 * USAGE
	 * name - name of the cookie
	 * [path] - path of the cookie (must be same as path used to create cookie)
	 * [domain] - domain of the cookie (must be same as domain used to create cookie) path and domain default if assigned null or omitted if no explicit argument proceeds
	 */
	if (getCookie(name)) 
		{
		document.cookie = name + "=" +
		((path) ? "; path=" + path : "") +
		((domain) ? "; domain=" + domain : "") +
		"; expires=Thu, 01-Jan-70 00:00:01 GMT";
		}
	}