function showSubmenu(show, id, parentid) {
	var d = document.getElementById(id);
		var parentTag = document.getElementById(parentid);
	
	if (show) {
		d.style.display='block';
		parentTag.style.backgroundImage = "url(/img/fundal_a_hover.gif)";
	}
	else {
		d.style.display='none';
		parentTag.style.backgroundImage = "url(/img/fundal_a.gif)";
	}
}