function open_subm(whichid,itis) {
	var el=$('menu_'+whichid);
	itis.parentNode.style.marginBottom='0';
	el.className=el.className=='hidden_submenu' ? 'visible_submenu' : 'hidden_submenu';
}



function ajax_req(el, fun, target_ob) {
	var url = '_ajax_functions.php';
  var pars = 'func='+fun+'&paramo='+escape(el.value);
  var target = target_ob;
  var myAjax = new Ajax.Updater(target, url, {method: 'get', parameters: pars});
}