function showMenu(menu) {
	hideMenu();
	document.getElementById(menu).className = "DIVheader_menu_"+menu+"2";
} 
function hideMenu() {	
	document.getElementById('home').className = "DIVheader_menu_home";
	document.getElementById('involved').className = "DIVheader_menu_involved";
	document.getElementById('sponsorship').className = "DIVheader_menu_sponsorship";
	document.getElementById('donations').className = "DIVheader_menu_donations";
}
function btnOver(id) {
	document.getElementById(id).className = "CELLmenu2";
}
function btnOut(id) {
	document.getElementById(id).className = "CELLmenu";
}