var mmObjs = new Array();
function mainMenuInit() {
	tmpObjs = document.getElementById('sub_menus').getElementsByTagName('div');
	j = 0;
	for (key in tmpObjs) {
		if (tmpObjs[key].className == 'sub-menu') {
			mmObjs[j] = tmpObjs[key];
			j++;
		}
	}
}

function mmShow(id) {
	for (key in mmObjs) {
		mmObjs[key].style.display = 'none';
		if (document.getElementById(mmObjs[key].id+'_a')) document.getElementById(mmObjs[key].id+'_a').className = '';
	}
	if (document.getElementById('ms'+id)) document.getElementById('ms'+id).style.display = 'block';
	if (document.getElementById('ms'+id) && document.getElementById('ms'+id+'_a')) document.getElementById('ms'+id+'_a').className = 'sel';
}

dsAddEvent(window, 'load', mainMenuInit);