You don't need any code sample, simple or not. Just get any menu and hover over it — you got my permission. :-)
Now, you probably think this is a bad joke. Not exactly. The thing is: the word "hover" does not reflect any functionality. It simply means that you move your mouse pointer the way it appears over some rendered HTML element, nothing else.
You did not ask a work about any effects you might want to see on related mouse events. Hovering itself does not need writing any code.
Your confusion looks more apparent when we look at the word "menu". It is not clear what do you mean by that. The HTML tag
<menu> also does not provide any functionality. It is used to render some indentation (which can be changed by its style) and provide some element in DOM structure to be used in JavaScript code, for example. Essentially, almost any element can be used to implement the behavior of a menu item.
The related mouse events which can be handled by JavaScrip are:
onMouseOver and
onMouseOut, see:
http://www.w3schools.com/js/tryit.asp?filename=tryjs_animation[
^]. Pure rendering effects can be created using CSS
:hover selector:
http://www.w3schools.com/cssref/sel_hover.asp[
^].
Something makes me doubt my advice could be useful. I'm looking at your: "dll files which is not decompiled". It looks like you think that the code samples could be obtained from something called "DLLs" through the process called "decompilation", so somebody would need to "decompile" some code for you. I have no idea where could you get it, but, frankly, I simply cannot imagine you programming anything at all, even with million of code samples. I would be vary happy to be proven wrong though…
—SA
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