//Scroll Calendari
function lib_bwcheck() {
  this.ver = navigator.appVersion
  this.agent = navigator.userAgent
  this.dom = document.getElementById ? 1 : 0
  this.opera5 = (navigator.userAgent.indexOf("Opera") > -1 && document.getElementById) ? 1 : 0
  this.ie5 = (this.ver.indexOf("MSIE 5") > -1 && this.dom && !this.opera5) ? 1 : 0;
  this.ie6 = (this.ver.indexOf("MSIE 6") > -1 && this.dom && !this.opera5) ? 1 : 0;
  this.ie4 = (document.all && !this.dom && !this.opera5) ? 1 : 0;
  this.ie = this.ie4 || this.ie5 || this.ie6
  this.mac = this.agent.indexOf("Mac") > -1
  this.ns6 = (this.dom && parseInt(this.ver) >= 5) ? 1 : 0;
  this.ns4 = (document.layers && !this.dom) ? 1 : 0;
  this.bw = (this.ie6 || this.ie5 || this.ie4 || this.ns4 || this.ns6 || this.opera5)
  return this
}

var bw = lib_bwcheck()

var speed = 30


var loop, timer


function makeObj(obj, nest) {
  nest = (!nest) ? "" : 'document.' + nest + '.'
  this.el = bw.dom ? document.getElementById(obj) : bw.ie4 ? document.all[obj] : bw.ns4 ? eval(nest + 'document.' + obj) : 0;
  this.css = bw.dom ? document.getElementById(obj).style : bw.ie4 ? document.all[obj].style : bw.ns4 ? eval(nest + 'document.' + obj) : 0;
  this.scrollHeight = bw.ns4 ? this.css.document.height : this.el.offsetHeight
  this.clipHeight = bw.ns4 ? this.css.clip.height : this.el.offsetHeight
  this.up = goUp; this.down = goDown;
  this.moveIt = moveIt; this.x = 0; this.y = 0;
  this.obj = obj + "Object"
  eval(this.obj + "=this")
  return this
}

var px = bw.ns4 || window.opera ? "" : "px";

function moveIt(x, y) {
  this.x = x
  this.y = y
  this.css.left = this.x + px
  this.css.top = this.y + px
}

function goDown(move) {
  if (this.y > -this.scrollHeight + oCont.clipHeight) {
    this.moveIt(0, this.y - move)
    if (loop) setTimeout(this.obj + ".down(" + move + ")", speed)
  }
}

function goUp(move) {
  if (this.y < 0) {
    this.moveIt(0, this.y - move)
    if (loop) setTimeout(this.obj + ".up(" + move + ")", speed)
  }
}


function scroll(speed) {
  if (scrolltextLoaded) {
    loop = true;
    if (speed > 0) oScroll.down(speed)
    else oScroll.up(speed)
  }
}

function noScroll() {
  loop = false
  if (timer) clearTimeout(timer)
}
//Makes the object
var scrolltextLoaded2 = false
var scrolltextLoaded = false
function scrolltextInit() {
  oCont = new makeObj('envoltura')
  oScroll = new makeObj('dentro', 'envoltura')
  oScroll.moveIt(0, 0)
  oCont.css.visibility = "visible"
  scrolltextLoaded = true
}
if (bw.bw) onload = scrolltextInit