Man page - wml::des::preload(3)
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apt-get install wml
Manual
wml::des::preload
NAMESYNOPSIS
DESCRIPTION
AUTHORS
REQUIRES
SEE ALSO
NAME
wml::des::preload - Preload Images
SYNOPSIS
#use
wml::des::preload
<preload src=<image filename>
via=<trick>>
DESCRIPTION
This include file provides the "<preload>" tag which can be used to preload images. Such preloading is usually done to speedup access for following pages. Currently there are only a few tricks how this can be done.
The following
combinations are currently supported:
"src="
anyimage
"via=size"
Preloads the image anyimage by using an "<img>" tag with the attributes "width=1 height=1" which leads to the loading of the image but only to a 1 pixel in display.
Advantage: Works for all browsers.
Disadvantage: This approach has the nasty side-effect of an occurring 1 pixel in display because "width=0 height=0" does not work as expected in most browsers (especially in Netscape 4.x). So, position your "<preload>" tag somewhere it does not destroy the look and feel of your page.
"src=" anyimage "via=js"
Preloads the image anyimage by using a JavaScript snippet which loads the image by declaring an unused "Image" object.
Advantage: Silently preloads the image without displaying anything.
Disadvantage: Only works for browsers with a JavaScript implementation and only for those who support the "Image" object (currently NS/3, NS/4, IE/4 ).
AUTHORS
Ralf S.
Engelschall
rse@engelschall.com
www.engelschall.com
Denis Barbier
barbier@engelschall.com
REQUIRES
Internal: P1, P2
External: --
SEE ALSO
wml::std::tags (3) HTML 3.2 "<img>" tag.