// 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" ';
      if (this.aNodes[iCtr].height > 0) {
        str = str + 'height="'+this.aNodes[iCtr].height+'" ';
      }
      if (this.aNodes[iCtr].width >0) {
        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(){
  //alert('Banner Changing');
  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";
}