old = (document.getElementById)?(true):(false);
ie = document.all;
ie4 = ie && document.getElementById;
nn4 = document.layers;

var elem = 0; timer = 0; subbg = 0; subfont = 0;

function mouseOver(id) {
	var open;
	if(!id) return;
	if(old) open = document.getElementById(id);
	else if(ie4) open = document.all[id];
	else if(nn4) open = document.layers[id];

	if(!open)return;
	if(!nn4)open = open.style;

	if(timer){
		clearTimeout(timer);
		timer=0;
	}
	
	if(elem && open!=elem)hideNow();
	open.display = '';
	elem = open;
}

function mouseOut()
{
	timer = setTimeout('hideNow()',300);
}

function hideNow()
{
	if(elem) elem.display = 'none';
	elem = 0;
}

function activateMenu(id) {
    id.className = 'menu_active';
}

function deactivateMenu(id) {
	id.className = 'menu';
}