// Copyright (C) 1999 Dan Steinman 
// Distributed under the terms of the GNU Library General Public License 
// Available at http://www.dansteinman.com/dynapi/ 

function MiniScroll(window,content) { 
this.window = window 
this.content = content 
this.inc = 8 
this.speed = 50 
this.contentHeight = (is.ns)? this.content.doc.height : this.content.elm.scrollHeight 
this.contentWidth = (is.ns)? this.content.doc.width : this.content.elm.scrollWidth 
this.up = MiniScrollUp 
this.down = MiniScrollDown 
this.left = MiniScrollLeft 
this.right = MiniScrollRight 
this.stop = MiniScrollStop 
this.activate = MiniScrollActivate 
this.activate(this.contentWidth,this.contentHeight) 
} 
function MiniScrollActivate() { 
this.offsetHeight = this.contentHeight-this.window.h 
this.offsetWidth = this.contentWidth-this.window.w 
this.enableVScroll = (this.offsetHeight>0) 
this.enableHScroll = (this.offsetWidth>0) 
} 
function MiniScrollUp() { 
if (this.enableVScroll) this.content.slideTo(null,0,this.inc,this.speed) 
} 
function MiniScrollDown() { 
if (this.enableVScroll) this.content.slideTo(null,-this.offsetHeight,this.inc,this.speed) 
} 
function MiniScrollLeft() { 
if (this.enableHScroll) this.content.slideTo(0,null,this.inc,this.speed) 
} 
function MiniScrollRight() { 
if (this.enableHScroll) this.content.slideTo(-this.offsetWidth,null,this.inc,this.speed) 
} 
function MiniScrollStop() { 
this.content.slideActive = false 
}