// JavaScript Document
function close_submenus() {
	var i;
	for (i=1; i<15; i++) {
		if (document.getElementById('submenu_'+i)) {
			var submenu = document.getElementById('submenu_'+i);
			submenu.style.display = 'none';
		}
	}
}
function switchMenu(obj) {
	var el = document.getElementById('submenu_'+obj);
	var arrow_link =  document.getElementById('mainmenu_'+obj);
	if ( el.style.display != 'none' ) {
		el.style.display = 'none';
		arrow_link.style.backgroundImage='url(img/bullet_1.gif)';
	} else {
		el.style.display = 'block';
		arrow_link.style.backgroundImage='url(img/bullet_2.gif)'; 
	}
	var i;
	for (i=1; i<15; i++) {
		if (document.getElementById('submenu_'+i)) {
			var submenu = document.getElementById('submenu_'+i);
			if ( submenu !== el ) {
				submenu.style.display = 'none';
			}
		}
		if (document.getElementById('mainmenu_'+i)) {
			var mainmenu = document.getElementById('mainmenu_'+i);
			if ( mainmenu !== arrow_link ) {
				mainmenu.style.backgroundImage='url(img/bullet_1.gif)';
			}
		}
	}
}
window.onload=function(){
	close_submenus();
}