Image preload on slow server

javagirl · Feb 21, 2001

Is there anything to be done to prevent the "imgXX is not defined" error on a rollover when the server is slow serving up the images? We know that we have a slow server (client owned, so no help there). The rollovers are navigation buttons. Holding your mouse over them while the page is loading, causes the error.

I'm doing the image preload at the top of the <head>. I am also testing "if (document.images

.complete)" before doing the rollover and it's working in most cases, except for a graphics-intensive page. Shouldn't that prevent the rollover image swap if the image is not loaded? I know I'm hitting it, cause I put in an alert msg there.

I've found many good solutions here, but I'm at a loss as to what to try next... other than a redirect while the images are loading... which is not an option.

Thanks in advance for any suggestions.

jaredn · Feb 22, 2001

don't invoke any of your rollover functionality until the onload event of the body has fired. not sure if this'll do it, but you can try

jared@aauser.com -

http://webfx.eae.net

Miros · Feb 22, 2001

Major cheat if your buttons are repeatedly used on many pages. Have a low-intensity home page (your basic "click here to enter site" page) which loads all your images and "displays" them scaled to 1x1 pixels. Basically, they won't be visible, but they'll be ready to use on further pages.

Rose/Miros

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Image preload on slow server

javagirl

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jaredn

Programmer

Miros

Programmer

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