Hello,
I'm new at Javascript, and have written a script for a series of random
roll-over button images, but one thing I would like to add is a function
that checks to make sure that there are no duplicates in the randomly
generated variables that choose the pictures.
Can anyone give me a hand with this? One other thing I can't seem to figure
out is how to manage the "onLoad" aspect of caching my roll-over images (DW
has locked the <body onload> function into a template, so I can't mess with
it...). so my rollover graphics are grabbed from the server in "real time"
during mouse-over, which is a bit "goofy" and "slow" in terms of instant
rollover effect. I'm sure that there is a much more efficient way of doing
this, but I've been able to learn a lot by tweaking DW's way of doing
things, so it's not a total loss.
In an external JS file, I set up a series of 10 random variables using the
Math.random and Math.round functions like so:
var btn0 = Math.random()*100;
btn0 = Math.round(btn0);
var btn1 = Math.random()*100;
btn1 = Math.round(btn1); .... etc for 10 buttons
Then in my page, I piggy-back onto Dreamweaver's built-in roll-over
handlers, like so (to write the instances of each rollover image);
<script>document.write('<a href="link1.htm" onMouseOut="MM_swapImgRestore()"
onMouseOver="MM_swapImage(\'pic1\',\'\',\'images/btns/'+btn0+'b.jpg\',1)"><img
src="images/btn/'+btn0+'a.jpg" name="pic1" width="80" height="100"
border="0"></a>');</script>
For this particular page, I'm pretty much stuck with DW's coding because
it's locked into a template that governs my site navigation. Thanks for any
pointers or help ...
Phil
