// JavaScript Document
function addScrollers() {
// code each scroller as follows:
// startScroll('id of scroller div','content of scroller');
startScroll('tiendasListado','');
}

//var speed=15; // scroll speed (bigger = faster)
var speed=67; // scroll speed (milisseconds --> bigger = slower)
var dR=false; // reverse direction

/* borja@cyt.com */
var midStart = true; // comenzamos en mitad de la capa
var proceso, sTxt, sH, eH // variables globales para manejar el proceso del Intervalo
var comienzo = true; // para controlar el primer paso
/* borja@cyt.com */

// Vertical Scroller Javascript
// copyright 24th September 2005, by Stephen Chapman
// permission to use this Javascript on your web page is granted
// provided that all of the code below (as well as these
// comments) is used without any alteration
var step = 2;
function objWidth(obj) {
	if(obj.offsetWidth) return obj.offsetWidth;
	if (obj.clip) return obj.clip.width; return 0;
}

function objHeight(obj) {
	if(obj.offsetHeight) return obj.offsetHeight;
	if (obj.clip) return obj.clip.height;
	return 0;
}

function scrF(i,sH,eH){
	var x=parseInt(i.top)+(dR? step: -step);
	/* Inicio borja@cyt.com */
	if(parseInt(i.top) == parseInt(sH) && !comienzo && midStart) sH = parseInt(sH*2);
	/* Fin borja@cyt.com */
	if(dR && x>sH)
		x=-eH;
	else if(x<2-eH)
		x=sH;i.top = (x)+'px';
  comienzo = false;
}

function startScroll(sN,txt){
	var scr=document.getElementById(sN);
	var sW = objWidth(scr)-6;
	sH = objHeight(scr);
	scr.innerHTML = '<div onmouseover="clearInterval(proceso);" onmouseout="proceso = setInterval(function() {scrF(sTxt.style,sH,eH);},speed);paso=true" id="'+sN+'in" style="position:absolute; left:3px; width:'+sW+';background-color:;">'+scr.innerHTML+'<\/div>';
	sTxt=document.getElementById(sN+'in');
	eH=objHeight(sTxt);
  /* Inicio borja@cyt.com */
  sH = (midStart ? parseInt(sH/2): sH);
	/* Fin borja@cyt.com */
	sTxt.style.top=(dR? -eH : sH)+'px';
  sTxt.style.clip='rect(0,'+sW+'px,'+eH+'px,0)';
	proceso = setInterval(function() {scrF(sTxt.style,sH,eH);},speed);

}

window.onload = addScrollers;