===== BASIC DOCUMENTATION FOR rollover class =====
0.- INTRODUCTION
The class handles generation of a rollover image (that means an image that
changes whenever the mouse is over it or not). Javascript interface is based
on old dynlayer api and works well on all 3 major browsers (IE 5.x, NS 4.x, NS 5+)
and has been tested up to 1 layer depth (i.e. <div ....><img ...></div>) but will possibly
fail on a more intrincated layer structure (almost for sure... at least on NS browsers)
1.- INTERFACE
The public interface for the class is formed by:
rollover($dirapp,$layer,$imgname,$baseimg,$selimg,$alt="",$link="#")
CONSTRUCTOR: initializes all data
$dirapp -> root directory for the web to path generation operations
$layer -> name for the layer where the img is places
$imgname -> name for the image (<img name='XXXX'...)
$baseimg -> src for the not selected image
$selimg ->src for the selected image
$alt -> alt text for the image
$link -> where to link from the image (as onMouseOver/Out is on an <a> element
preload()
PRELOADER: Generates the extra img objects used by the JavaScript
NOTE: must be called within an existing <script> tag
image()
GENERATOR: puts the image and the event handling on screen
The Javascript interface works in 2 functions (placed in the images.js file)
that must be included in the page (i.e. <script language=javascript src=images.js></script>)
preload(imgobj,srcimg)
imgobj -> string: name for the img object
srcimg -> string: path & filename for the image to preload
changeImage(layer,image,imgobj)
layer -> string: name for the layer where the img is placed
image -> string: name for the image that does 'roll'
imgobj-> string: name for the imgobject with the new image
2.- Future releases and WIP
This class will not have many revisions as it is fully functional for
it's intended use. For further developement any suggestions appreciated
3.- Contact information
Carlos Falo Hervás
carles@bisinteractive.net
http://www.bisinteractive.net
C/Manila 54-56 Esc. A Ent. 4ª
08034 Barcelona Spain
Phone: +34 9 3 2063652
Fax: +34 9 3 2063689
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