Javascript fejl ved validering

Hej Eksperter,

Hvordan får jeg denne fejl væk, som jeg får i fejlkonsol?

Advarsel: Fejl i tolkning af værdi for 'opacity'.  Erklæring droppet.

Den refererer til denne kode:

<script lanuage="JavaScript">

function checkDom()
{
    this.name=navigator.appName.toLowerCase()
    this.ver=navigator.appVersion.toLowerCase()
    this.opera=(this.name=="opera")?1:0
    this.dom=(document.getElementById&&!this.opera)?1:0
    this.ie=(document.all)?1:0
    this.ie6=(this.dom&&this.ie&&this.ver.indexOf('msie 6'))?1:0
    this.ie5=(this.dom&&this.ie&&!this.ie6)?1:0
    this.ns4=(document.layers)?1:0
    this.ns6=(this.dom&&!this.ie)?1:0
    this.ns=(this.ns4||this.ns6)?1:0
    this.bw=(this.dom||this.ie||this.ns||this.opera)?1:0
}
bw = new checkDom()

// make dom object
function makeDom(name)
{
    if(!document.getElementById) return null
    this.name = name
    this.evnt = document.getElementById(name)
    this.css = this.evnt.style
    this.x = this.css.pixelLeft || this.evnt.offsetLeft
    this.y = this.css.pixelTop || this.evnt.offsetTop
    this.w = this.css.pixelWidth || this.evnt.offsetWidth
    this.h = this.css.pixelHeight || this.evnt.offsetHeight
    this.id = name
    this.obj = name + 'Object'; eval(this.obj + '=this')

    makeDom.prototype.moveTo = function(x,y)
    {
        x = parseInt(x); y = parseInt(y)
        this.css.left = x+'px'
        this.css.top = y+'px'
        this.x = x
        this.y = y
    }
    makeDom.prototype.writ = function(txt,where)
    {
        this.evnt.innerHTML = where ? where>0 ? this.evnt.innerHTML + txt : txt + this.evnt.innerHTML : txt
    }
}

function fadeTicker()
{
    this.running = 0
    this.speed = 0
    this.delay = 0
    this.box = 0
    this.scrl = 0
    this.onItem = 0
    this.to = 0
    this.alph = 100
    this.items = new Array()
    eval(this.obj + '=this')
}
fadeTicker.prototype.addItem = function(itm)
{
    this.items[this.items.length] = itm
}
fadeTicker.prototype.init = function(spd,dly)
{
    this.speed = parseInt(spd)
    this.delay = parseInt(dly*1000)
    this.box = new makeDom('tickBox')
    this.scrl = new makeDom('tickCont')
    this.draw()
}
fadeTicker.prototype.draw = function()
{
    this.onItem = (this.onItem<this.items.length) ? this.onItem : 0
    this.scrl.moveTo(this.scrl.x,this.box.h)
    this.scrl.writ(this.items[this.onItem])
    this.onItem++
    this.run()
}
fadeTicker.prototype.run = function()
{
    if(this.scrl.y>1)
    {
        this.scrl.moveTo(this.scrl.x,this.scrl.y-this.speed)
        this.to = setTimeout(this.obj+'.run()',25)
    }
    else this.to = setTimeout(this.obj+'.fade()',this.delay)
}
fadeTicker.prototype.play = function()
{
    clearTimeout(this.to)
    this.to = setTimeout(this.obj+'.run()',1)
}
fadeTicker.prototype.pause = function()
{
    clearTimeout(this.to)
}
fadeTicker.prototype.fade = function()
{
    this.setOpac(this.alph)
    this.alph -= 10
    if(this.alph) setTimeout(this.obj+'.fade()',25)
    else
    {
        this.alph = 100
        this.setOpac(this.alph)
        this.draw()
    }
}
fadeTicker.prototype.setOpac = function(op)
{
    if(bw.ns6) this.scrl.css.MozOpacity = op+'%'
    else this.scrl.evnt.filters['alpha']['opacity'] = op
}   
    </script>