RW_IMAGE_FUNCTION


Purpose

Creates an image button for an HTML document that invokes a JavaScript program. Outputs directly to RealWeb's RWC.OUTBUF buffer. Up to three images can be specified for display on the button (see also RW_IMAGE_ANCHOR).

Syntax

RW_IMAGE_FUNCTION(JSFunction, Description, aImageURLArray, aClass)

Parameters

JSFunction The JavaScript program to be run when the image is clicked.

Description Alternative text for the image (the text displayed if the image cannot be displayed).

aImageURLArray
A dynamic array containing up to 3 image URLs:

aClass A dynamic array that can contain the following elements:

Element No. Attribute Description
1 CLASS The name of a tag class defined in a CSS stylesheet.
2 ALT

Alternative text that is displayed instead of the image, if image display is not possible or disabled by the user.

This must be a text string of up to 1024 characters. It can contain entity references to special characters, but cannot contain any other sort of markup; in particular, no style tags are allowed.

Attributes defined in the aClass parameter are applied to the INPUT tag.

For information about using aClass, see The aClass Parameter.

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