Scrolling HTML Basics, Part III: Controlling the Scroll Box - www.docjavascript.com

Controlling the Scroll Box

When you want to change the characteristics of the scrolling box, you can change one of the following parameters:

• Gsrc: The URL of the external HTML feed.
• Ginterval: The number of milliseconds to wait between successive movements of the pages.
• Gincrement: The distance in pixels of each movement.
• GcanvasColor: The color of the canvas' background. Needed only for Internet Explorer. The color in Netscape Navigator is set in the external HTML file itself.
• GleftPadding: The padding on the left side of the box.

The parameters are placed in a separate script, scrollerconfig.js:

// Begin parameters of scroller
var Gsrc = "jscolumns.html";
var Ginterval = 50;
  // The number of milliseconds between each vertical movement.
var Gdelay = 20;
var Gincrement = 1; // The distance (in pixels) of each movement.
var GcanvasColor = "#FFCCff";
  // background color of scroller, named or hex
var GleftPadding = 3;
// End parameters of scroller

The Gdelay variable is used to synchronize the various page loading, and does not control the appearance of the page.