function getE(id)
	{
		if(document.getElementById) {
			return document.getElementById(id);
		} else if(document.all) {
			return document.all[id];
		} else return;
	}
	
	function picClose(id, mode)
	{
		img = getE('m'+id);
		if (mode) img.src = 'img/menu_close.gif';
		else img.src = 'img/menu_close_over.gif';
	}
	
	function picOpen(id, mode)
	{
		img = getE('m'+id);
		if (mode) img.src = 'img/menu_open.gif';
		else img.src = 'img/menu_open_over.gif';
	}
	
	function levMenu(id, mode)
	{
		lev = getE('lev'+id);
		if (mode) lev.style.display = 'none';
		else lev.style.display = 'block';
	}
	
	function chengeColor(id, mode)
	{
		tr = getE('tr'+id);
		if (mode) tr.style.background = '#D5D5D5';
		else tr.style.background = '#C4110C';
	}