/********************************************************************************
Copyright (C) 1999 Thomas Brattli
This script is made by and copyrighted to Thomas Brattli at www.bratta.com
Visit for more great scripts. This may be used freely as long as this msg is intact!
I will also appriciate any links you could give me.
********************************************************************************/

//Browsercheck:
ie=document.all?1:0
n=document.layers?1:0

//The speed of the timeout between each scroll.
timSpeed=50

//The height of the container (change this when it scrolls to much or to little)
contHeight=100

function makeScrollObj(obj,nest){
	nest=(!nest) ? '':'document.'+nest+'.'										
	this.css=(n) ? eval(nest+'document.'+obj):eval('document.all.'+obj+'.style')							
	this.scrollHeight=n?this.css.document.height:eval('document.all.'+obj+'.offsetHeight')							
	this.top=b_gettop										
	return this
}
//Getting the top for the top method
function b_gettop(){
	var gleft=(n) ? eval(this.css.top):eval(this.css.pixelTop);
	return gleft;
}
//Variables
var scrollTim;
var active=0;

function scroll(speed){
	clearTimeout(scrollTim)
	way=speed>0?1:0
	if((!way && oScroll[active].top()>-oScroll[active].scrollHeight+contHeight) || (oScroll[active].top()<0 && way)){
		oScroll[active].css.top=oScroll[active].top()+speed
		scrollTim=setTimeout("scroll("+speed+")",timSpeed)
	}
}
//Clears the timeout so the scroll stops, this is called onmouseout.
function noScroll(){
	clearTimeout(scrollTim)
}

function changeActive(num){
	oScroll[active].css.visibility='hidden'
	active=num
	oScroll[active].css.top=0
	oScroll[active].css.visibility='visible'
}

function scrollInit(){
	oScroll=new Array()
	oScroll[0]=new	makeScrollObj('divScroll1','divCont')
	oScroll[0].css.visibility='visible'
}
var Version4 = (parseInt(navigator.appVersion)>=4);
var NS4 = (navigator.appName == "Netscape" && parseInt(navigator.appVersion) >= 4);
var layerObj = (NS4) ? 'document' : 'document.all';
var styleObj = (NS4) ? '' : '.style';
var show_visible = (NS4) ? 'show' : 'visible';
var hide_hidden  = (NS4) ? 'hide' : 'hidden';

function muestra_capa(que){
	scrollInit();
	if (Version4){
		 eval(layerObj + '["'+que+'"]' + styleObj+'.visibility = show_visible');
	}	
}

//onload=scrollInit;
//-->