Img Src (preloading)

I remeber that HTML have an option for IMG SRC to load 2 image, one at a lower quality then another one at a higher quality after the first one it's complety loaded...


How do i this
IMG SRC="final" .... "pre-load.jpg"

 

<IMG    SRC="../graphics/paulonbike.gif" 
   LOWSRC="../graphics/paulonbike_lowsrc.gif" 
   HEIGHT=378 WIDTH=516 ALT="A bike and his boy">

PHP:

 

^But without the caps, spaces, an end tag (/>) and quotation marks around the width and height numbers (height="431") for html4-xhtml1-strict compliance.

 

I don't think LOWSRC is valid XHTML markup at all - I presume it is in HTML though

 

I'd never heard of it, but I'm still new enough that I'd never heard of select options before today either-- I didn't get that far in the book yet : )

I don't see it listed on w3schools.

 

Never heard of it either. Doesn't work for me in Firefox, haven't tried others.

I'd rather use JS to preload the image and change the image src attribute.