loading tree images

Lucia Sheehan <[email protected]>
Newsgroups gmane.comp.java.struts-menu.user
Message-ID <[email protected]>



I'm using struts-menu to display a tree using the ListMenu Displayer.
However, I'm finding that there is a big hit on loading the tree because
the images are being downloaded from the server each time the menu is
painted.  On load of the menu, each plus and minus gif is loaded and this
is done again when the tree is expanded.  The images are referenced in
menuExpandable.js and menuExpandable.css.

 I've tried to do this using javascript - e.g. (new Image(80,20)).src =
"images/plus.gif";
Has anyone any idea how to preload these images so they are retrieved from
the server only once?



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