[рони]

оно и в прежнем варианте неплохо работало ....малость подправить только

var t=[],t2=[];
function show_menu(name)
{   var objectm = document.getElementById(name+'-menu');
    var width = parseInt(objectm.style.width);
    var opacity = parseFloat(objectm.style.opacity);
	if(width <= 200) {
		   if(t2[name+'-menu'])	clearTimeout(t2[name+'-menu']);
                                  width += 2;
			objectm.style.width = width+"px";
			if(opacity <= 0.9) {
			opacity += 0.01;
            objectm.style.opacity = opacity;
			}
    t[name+'-menu'] = setTimeout("show_menu('"+name+"')",5);
			}
}


function hide_menu(name)
{
    var objectm = document.getElementById(name+'-menu');
    var width = parseInt(objectm.style.width);
    var opacity = parseFloat(objectm.style.opacity);
      if(width >= 0) {
   if(t[name+'-menu'])	clearTimeout(t[name+'-menu']);
	width -= 2;
	objectm.style.width = width+"px";
	  if(opacity >= 0) {
		opacity -= 0.01;
                       objectm.style.opacity = opacity;
			}
    t2[name+'-menu'] = setTimeout("hide_menu('"+name+"')",5);
			}
}