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wml::des::preload(3)						     EN Tools						      wml::des::preload(3)

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 occuring 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. EN Tools 2014-04-16 wml::des::preload(3)

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