thx Dimitar for your explanation of delay.
I think I get it.
If you look to the jquery origin ( http://jsfiddle.net/4YsUV/2/ ) you
will see, that in the end there is a really fade-out.
With the moo-version there isn't one. http://jsfiddle.net/4YsUV/6/
tested in firefox 3.6
one more question to the structue
$(function() {
$.preload([ // define an array
"bg_1.png",
"bg_2.png"
], {
init: function(loaded, total) { //function object
dosomething
},
...
how I have to write in in moo?
var preload = ([ //array
"bg_1.png",
"bg_2.png"
], {
init: function(loaded, total) {...
is wrong