function muestraSubmenu(){
	$get('submenuVentas').style.display='block';
}

function escondeSubmenu(){
	if($get('submenuVentas')) $get('submenuVentas').style.display='none';
}

function cambia_separator(id){
	if($get('separator_'+(id-1))) $get('separator_'+(id-1)).className="menu_separator_over_2";
	if($get('separator_'+id)) $get('separator_'+id).className="menu_separator_over_1";
}

function restaura_separator(id){
	if($get('separator_'+(id-1))) $get('separator_'+(id-1)).className="menu_separator";
	if($get('separator_'+id)) $get('separator_'+id).className="menu_separator";
}