Qu about pre cached images

sleem

Hi.

I read an article on the web about pre caching images with javascript.

I'm doing it kind of like so:

var myImage = new Image();
myImage.src = "location/image.jpg";
I put that code into a .js file called mySite.js

Given that every page on the site has the following in the line:

<head><script LANGUAGE="JAVASCRIPT" SRC="mySite.js"></head>

Does that mean I'm forcing people's browsers to reload the same image
every time they navigate to a new page on my site?

Sep 21 '06 #1

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1018

sleem wrote:

Given that every page on the site has the following in the line:

<head><script LANGUAGE="JAVASCRIPT" SRC="mySite.js"></head>

Does that mean I'm forcing people's browsers to reload the same image
every time they navigate to a new page on my site?

No, mySite.js file is loaded only once (for the first page) and then
reused from cache.
Same with pictures: each separate picture is loaded only once and then
reused from the cache.

Note: that is for "real" .gif / .jpg / .png images. That could be some
implications if pictures are coming from an image-generating server
script and some headers are set in certain ways.

Sep 21 '06 #2

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Qu about pre cached images

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