// BANNER OBJECT
function Banner(objName){
 this.obj = objName;
 this.aNodes = [];
 this.currentBanner = 0;
 
};
 
// ADD NEW BANNER
Banner.prototype.add = function(bannerType, bannerPath, bannerDuration, height, width, hyperlink) {
 this.aNodes[this.aNodes.length] = new Node(this.obj +"_"+ this.aNodes.length, bannerType, bannerPath, bannerDuration, height, width, hyperlink);
};
 
// Node object
function Node(name, bannerType, bannerPath, bannerDuration, height, width, hyperlink) {
 this.name = name;
 this.bannerType = bannerType;
 this.bannerPath = bannerPath;
 this.bannerDuration = bannerDuration;
 this.height = height
 this.width = width;
 this.hyperlink= hyperlink;
// alert (name +"|" + bannerType +"|" + bannerPath +"|" + bannerDuration +"|" + height +"|" + width + "|" + hyperlink);
};
 
// Outputs the banner to the page
Banner.prototype.toString = function() {
 var str = ""
 for (var iCtr=0; iCtr < this.aNodes.length; iCtr++){
  str = str + '<span name="'+this.aNodes[iCtr].name+'" '
  str = str + 'id="'+this.aNodes[iCtr].name+'" ';
  str = str + 'class="m_banner_hide" ';
  str = str + 'bgcolor="#FFFCDA" '; // CHANGE BANNER COLOR HERE
  str = str + 'align="center" ';
  str = str + 'valign="top" >\n';
  if (this.aNodes[iCtr].hyperlink != ""){
   str = str + '<a href="'+this.aNodes[iCtr].hyperlink+'">';
  }
   
  if ( this.aNodes[iCtr].bannerType == "FLASH" ){
   str = str + '<OBJECT '
   str = str + 'classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" '
   str = str + 'codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,0,0" '
   str = str + 'WIDTH="'+this.aNodes[iCtr].width+'" '
   str = str + 'HEIGHT="'+this.aNodes[iCtr].height+'" '
   str = str + 'id="bnr_'+this.aNodes[iCtr].name+'" '
   str = str + 'ALIGN="" '
   str = str + 'VIEWASTEXT>'
   str = str + '<PARAM NAME=movie VALUE="'+ this.aNodes[iCtr].bannerPath + '">'
   str = str + '<PARAM NAME=quality VALUE=high>'
   str = str + '<PARAM NAME=bgcolor VALUE=#FFFCDA>'
   str = str + '<EMBED ';
   str = str + 'src="'+this.aNodes[iCtr].bannerPath+'" '
   str = str + 'quality=high '
//   str = str + 'bgcolor=#FFFCDA '
   str = str + 'WIDTH="'+this.aNodes[iCtr].width+'" '
   str = str + 'HEIGHT="'+this.aNodes[iCtr].height+'" '
   str = str + 'NAME="bnr_'+this.aNodes[iCtr].name+'" '
   str = str + 'ALIGN="center" '
   str = str + 'TYPE="application/x-shockwave-flash" '
   str = str + 'PLUGINSPAGE="http://www.macromedia.com/go/getflashplayer">'
   str = str + '</EMBED>'
   str = str + '</OBJECT>'
  }else if ( this.aNodes[iCtr].bannerType == "IMAGE" ){
   str = str + '<img src="'+this.aNodes[iCtr].bannerPath+'" ';
   str = str + 'border="0" ';
   str = str + 'height="'+this.aNodes[iCtr].height+'" ';
   str = str + 'width="'+this.aNodes[iCtr].width+'">';
  }
 
  if (this.aNodes[iCtr].hyperlink != ""){
   str = str + '</a>';
  }
 
  str += '</span>';
 }
 return str;
};
 
// START THE BANNER ROTATION
Banner.prototype.start = function(){
 this.changeBanner();
 var thisBannerObj = this.obj;
 // CURRENT BANNER IS ALREADY INCREMENTED IN cahngeBanner() FUNCTION
 setTimeout(thisBannerObj+".start()", this.aNodes[this.currentBanner].bannerDuration * 1000);
}
 
// CHANGE BANNER
Banner.prototype.changeBanner = function(){
 var thisBanner;
 var prevBanner = -1;
 if (this.currentBanner < this.aNodes.length ){
  thisBanner = this.currentBanner;
  if (this.aNodes.length > 1){
   if ( thisBanner > 0 ){
    prevBanner = thisBanner - 1;
   }else{
    prevBanner = this.aNodes.length-1;
   }
  }
  if (this.currentBanner < this.aNodes.length - 1){
   this.currentBanner = this.currentBanner + 1;
  }else{
   this.currentBanner = 0;
  }
 }
 
 
 if (prevBanner >= 0){
  document.getElementById(this.aNodes[prevBanner].name).className = "m_banner_hide";
 }
 document.getElementById(this.aNodes[thisBanner].name).className = "m_banner_show";
}

function init(){
 banner1 = new Banner('banner1');
	
	banner1.add("IMAGE", "/images/nd/nrvcover1115.jpg", 8, 260, 385,"http://www.roanoke.com/news/nrv/226360");
	banner1.add("IMAGE", "/images/nd/nrvcover1104.jpg", 8, 260, 385,"http://www.roanoke.com/news/nrv/224941");
	banner1.add("IMAGE", "/images/nd/nrvcover1103.jpg", 8, 260, 385,"http://www.roanoke.com/news/nrv/224830");	
	
	
	
	
	
	           
	banner1.add("IMAGE", "/images/nd/bestshot.jpg", 11, 260, 385,"http://www.flickr.com/photos/newrivervalley/");
                           
                  
                    document.write(banner1);
                    banner1.start();
                    }