// Main Navigation

currentVisibleID = '';

function ShowMenu(strID) {
	if (currentVisibleID != '') {
		varHideMenu = document.getElementById('sub-' + currentVisibleID);
		varHideMenu.style.visibility = "hidden";
		varHideLink = document.getElementById('menulink-' + currentVisibleID);
		varHideLink.style.color = "#aaa";
	}
	
	varSubMenu = document.getElementById('sub-' + strID);
	varSubMenu.style.visibility = "visible";
	
	varCurrentLink = document.getElementById('menulink-' + strID);
	varCurrentLink.style.color = "#fff";
	
	currentVisibleID = strID;	
}