function AdRotator(imgTagNameAttribute, adURLs, adImageURLs, rotationTime,

  adRotatorVarName) {

 this.imgTagNameAttribute = imgTagNameAttribute

 this.adURLs = adURLs

 this.adImageURLs = adImageURLs

 this.rotationTime = rotationTime

 this.adRotatorVarName = adRotatorVarName

 this.index = 0

 this.adImages = new Array(adImageURLs.length)

 for(var i=0; i<adImageURLs.length; ++i) {

  this.adImages[i] = new Image()

  this.adImages[i].src = adImageURLs[i]

 }

 this.writeHTML = AdRotator_writeHTML

 this.start = AdRotator_start

 this.rotate = AdRotator_rotate

 this.handleClick = AdRotator_handleClick

}



function AdRotator_writeHTML() {

 document.write('<p align="center">')

 //document.write('<a href="javascript:void(0)" ')

 //document.write('"onclick="'+this.adRotatorVarName+'.handleClick()">')

 document.write('<img name="'+this.imgTagNameAttribute+'" width="228" height="146" border="2" style="border-style: solid; border-color: #000000" ')

 document.write('src="'+this.adImageURLs[0]+'">')

 //document.write('</a></p>')

}



function AdRotator_start() {

 window.setInterval(this.adRotatorVarName + '.rotate()', this.rotationTime)

}



function AdRotator_rotate() {

 ++this.index

 this.index %= this.adImageURLs.length

 document.images[this.imgTagNameAttribute].src = this.adImages[this.index].src

}



function AdRotator_handleClick() {

 setTimeout("window.location.href = '"+this.adURLs[this.index]+"'",500)

}