window.onload=function(){
linkEmail();
externalLinks();
}

function externalLinks() {
	if (!document.getElementsByTagName) 
		return; 
	var anchors = document.getElementsByTagName("a"); 
	for (var i=0; i<anchors.length; i++) {
		var anchor = anchors[i]; 
		if (anchor.getAttribute("href") &&  anchor.getAttribute("rel") == "external") anchor.target = "_blank";
		if (anchor.getAttribute("href") &&  anchor.getAttribute("rel") == "external") anchor.rel = "nofollow";
	}
}

function linkEmail() {
  if(!document.getElementsByTagName) return;
  var allElts = document.getElementsByTagName("*");
  if(allElts.length == 0 && document.all) 
    allElts = document.all; //hack for IE5
  for(var i=0; i<allElts.length; i++) {
    var elt = allElts[i];
    var className = elt.className || elt.getAttribute("class") 
      || elt.getAttribute("className");
    if(className && className.match(/\bemail\b/)
        && elt.firstChild.nodeType == 3) {
      var addr = elt.firstChild.nodeValue;
      addr = addr.replace(/[ \[\{\(\|\/\\]at[ \]\}\)\|\/\\]/i, "@")
        .replace(/[ \[\{\(\|\/\\](dot|period)[ \]\}\)\|\/\\]/gi, ".");
      var lnk = document.createElement("a");
      lnk.setAttribute("href","mailto:"+addr);
      lnk.appendChild(document.createTextNode(addr));
      elt.replaceChild(lnk, elt.firstChild);
    }
  }
}

function Banner(refreshTime, width, height, altText, start, random){
	this.objName = "bannerAd" + (Banner.count++);
	eval(this.objName + "=this");
	if (!refreshTime) this.refreshTime = 5000; else this.refreshTime = refreshTime*1000;
	if (!width) this.width = 460; else this.width = width;
	if (!height) this.height = 68; 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];
		if (ad.target == "_self"){
			location.href = ad.href;
		}
		else if (ad.target == "_blank" || ad.target == "_new"){
			open(ad.href,this.objName + "Win");
		}
		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();" class="imagelink"';
			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;