function Images(){
this.items=new Array;
this.add=addImages;
this.get=getImages;
}

function addImages(ImagesURL,Href,AltTag,Credit){
var rec=new Object;
rec.url=ImagesURL;
rec.href=Href;
rec.alt=AltTag;
rec.credit=Credit; 
var itemCount=this.items.length;
this.items[itemCount]=rec;
}

function getImages(){
var itemCount=this.items.length;
var idx=Math.round(Math.random()*(itemCount-1));
var rec=this.items[idx];
var buf='<img width="600" height="260" class="noBorder" src="' + rec.url + '" alt="' + rec.alt + '" />';
buf+='<div class="caption">' + rec.credit + '</div>';
return buf;
}