function Banner(refreshTime, width, height, altText, start, random)
{
   this.objName = "bannerAd" + (Banner.count++);
   eval(this.objName + "=this");
   if (!refreshTime) 
      this.refreshTime = 7000; 
   else 
      this.refreshTime = refreshTime*1000;
   
   if (!width) 
      this.width = 600; 
   else 
      this.width = width;
   
   if (!height) 
      this.height = 65; 
   
   else 
	  this.height = height;
   
   if (random == null) 
      this.random = 1; 
   else 
      this.random = random;
   
   this.altText = altText;
   this.ads = [];
   
   if (start) 
      this.currentAd = start-1; 
   else start = null;
      this.mySize = 0;

   this.Ad = function(src, href, target, mouseover) 
   {
      var tempImage = new Image();
	  tempImage.src = src;
   	  this.ads[this.mySize] = new Object();
	  var ad = this.ads[this.mySize];
	  ad.src = src;
  	  
	  if (typeof(target) == "undefined" || target == null) 
	     ad.target = "_self"; 
	  else 
	     ad.target = target;
	  
	  ad.href = href;
	  ad.mouseover = mouseover;
	  this.mySize++;
	}

	this.link = function()
    {
	   var	ad = this.ads[this.currentAd];
	   var length = "width=620, height=500"

	   if (ad.target == "_self") { location.href = ad.href; }
	   
	   else if (ad.target == "_blank" || ad.target == "_new")
	   {
	      //open(ad.href, this.objName + "Win", length);
	   }
	   
	   else top.frames[ad.target].location.href = ad.href;
	}

	this.showStatus = function(){
		var ad = this.ads[this.currentAd];
		if (ad.mouseover) status = ad.mouseover;
		else status = ad.href;
	}

	this.randomAd = function(){
		var n;
		do { n = Math.floor(Math.random() * (this.mySize)); } 
		while(n == this.currentAd);
		this.currentAd = n;
	}

	this.output = function(){
		var tempCode = "";
		if (this.mySize > 1){
			if (this.currentAd == null) this.randomAd();
			if (this.currentAd >= this.mySize) this.currentAd = this.mySize - 1;
			tempCode = '<a href="javascript:'+this.objName+'.link();"';
			tempCode += ' onMouseOver="' + this.objName + '.showStatus(); return true"';
			tempCode += ' onMouseOut="status=\'\';return true">';
			tempCode += '<img src="' + this.ads[this.currentAd].src + '" width="' + this.width;
			tempCode += '" name="' + this.objName + 'Img" height="' + this.height + '" ';
			if (this.altText) tempCode += 'alt="'+this.altText + '" ';
			tempCode += 'border="0" /></a>';
			document.write(tempCode);
			this.nextAd();
		} else document.write("Error: two banners must be defined for the script to work.");
	}

	this.newAd = function(){
		if (!this.random){	
			this.currentAd++;
			if (this.currentAd >= this.mySize)
			   this.currentAd = 0;
		}
		else {
			this.randomAd();
		}
		this.nextAd();
	}

	this.nextAd = function(){
		document.images[this.objName+ 'Img'].src = this.ads[this.currentAd].src;
		setTimeout(this.objName+'.newAd()',this.refreshTime)
	}
}
Banner.count = 0;