Random Quotes

Im testing out this News Scroller from dynamicdrive.com and I was wondering if someone could help me make the quotes show up randomly. The tutorial for implementing it is located here http://www.dynamicdrive.com/dynamicindex2/generaltick.htm . Heres the javascript…

/*Example message arrays for the two demo scrollers*/

var tickercontent=new Array()
tickercontent[0]='<a href="http://www.javascriptkit.com">JavaScript Kit</a><br />Comprehensive JavaScript tutorials and over 400+ free scripts!'
tickercontent[1]='<a href="http://www.codingforums.com">Coding Forums</a><br />Web coding and development forums.'
tickercontent[2]='<a href="http://www.cssdrive.com" target="_new">CSS Drive</a><br />Categorized CSS gallery and examples.'

/***********************************************
* DHTML Ticker script- © Dynamic Drive (www.dynamicdrive.com)
* This notice MUST stay intact for legal use
* Visit http://www.dynamicdrive.com/ for this script and 100s more.
***********************************************/

function domticker(content, divId, divClass, delay, fadeornot){
this.content=content
this.tickerid=divId //ID of master ticker div. Message is contained inside first child of ticker div
this.delay=delay //Delay between msg change, in miliseconds.
this.mouseoverBol=0 //Boolean to indicate whether mouse is currently over ticker (and pause it if it is)
this.pointer=1
this.opacitystring=(typeof fadeornot!="undefined")? "width: 100%; filter:progid:DXImageTransform.Microsoft.alpha(opacity=100); -moz-opacity: 1" : ""
if (this.opacitystring!="") this.delay+=500 //add 1/2 sec to account for fade effect, if enabled
this.opacitysetting=0.2 //Opacity value when reset. Internal use.
document.write('<div id="'+divId+'" class="'+divClass+'"><div style="'+this.opacitystring+'">'+content[0]+'</div></div>')
var instanceOfTicker=this
setTimeout(function(){instanceOfTicker.initialize()}, delay)
}

domticker.prototype.initialize=function(){
var instanceOfTicker=this
this.contentdiv=document.getElementById(this.tickerid).firstChild //div of inner content that holds the messages
document.getElementById(this.tickerid).onmouseover=function(){instanceOfTicker.mouseoverBol=1}
document.getElementById(this.tickerid).onmouseout=function(){instanceOfTicker.mouseoverBol=0}
this.rotatemsg()
}

domticker.prototype.rotatemsg=function(){
var instanceOfTicker=this
if (this.mouseoverBol==1) //if mouse is currently over ticker, do nothing (pause it)
setTimeout(function(){instanceOfTicker.rotatemsg()}, 100)
else{
this.fadetransition("reset") //FADE EFFECT- RESET OPACITY
this.contentdiv.innerHTML=this.content[this.pointer]
this.fadetimer1=setInterval(function(){instanceOfTicker.fadetransition('up', 'fadetimer1')}, 100) //FADE EFFECT- PLAY IT
this.pointer=(this.pointer<this.content.length-1)? this.pointer+1 : 0
setTimeout(function(){instanceOfTicker.rotatemsg()}, this.delay) //update container
}
}