<A
HREF="mouseover.htm"
onMouseOver="document.display.src='images/displayOn.gif'"
onMouseOut="document.display.src='images/displayOff.gif'">
<IMG NAME="display"
SRC="images/displayOff.gif"
>
</A>
 This code
causes some problems because:
- The user might not use a JavaScript 1.1 "compatible
browser".
- The second image is not being pre-loaded.
- You have to rewrite the code for every image on a web-page.
- You want to have a script which can be used in many web-page over
and over again without large changes.
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