[Deff]

deputat333,
Поставьте alertы

var timer=[];
function menuFirstLast(TimerId_01,TimerId_02,droptab,mmenu_fon,mmenu_fon_r,mmenu_fon_l,mmenu){
	$(mmenu).mouseenter({
		alert(typeof(TimerId_02)+'='+TimerId_02)
		clearTimeout(timer[TimerId_02]);
		timer[TimerId_01]=setTimeout({
			$(droptab).fadeIn(300);
			$(mmenu_fon).fadeIn(100);
			$(mmenu_fon_r).fadeIn(100);
			$(mmenu_fon_l).fadeIn(100);
		},300)
	}).mouseleave({
		alert(typeof(TimerId_01)+'='+TimerId_01)
		clearTimeout(timer[TimerId_01]);
		timer[TimerId_02]=setTimeout({
			$(droptab).fadeOut(100);
			$(mmenu_fon).fadeOut(100);
			$(mmenu_fon_r).fadeOut(100);
			$(mmenu_fon_l).fadeOut(100);
		},300)
	})
};
$(document).ready(function(){
	menuFirstLast(1,2,'#droptab1','#mmenu1_fon','#mmenu1_fon_r','#mmenu1_fon_l','#mmenu1');
});