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);
    }
  }
}


// header fader //

image1 = new Image();
image1.src = "/images/bg1.jpg";
image1 = new Image();
image1.src = "/images/bg2.jpg";
image1 = new Image();
image1.src = "/images/bg3.jpg";
image1 = new Image();
image1.src = "/images/bg4.jpg";
image1 = new Image();
image1.src = "/images/bg5.jpg";
image1 = new Image();
image1.src = "/images/bg6.jpg";

function photofader(nm, mainDiv, imgArr){
	this.name		= nm;
	this.imgArr = imgArr;
	this.curImg = 0;
	this.curDiv = 1;
	
	var mainDv = document.getElementById(mainDiv);
	
	document.pfObj = this;
	
	document.write("<style type='text/css'>\n");
	document.write("#pf_photo1 img { visibility:hidden; }\n");
	document.write("#pf_photo1 { position:absolute; z-index: 1; }\n");
	document.write("#pf_photo2 { position:absolute; z-index: 0; }\n");
	document.write("</style>");
	
	this.initImages = function() {
		var hldr1 = "pf_photo1";
		var hldr2 = "pf_photo2";
		
		var dv1 = document.createElement("div");
				dv1.id = "pf_photo1";
				dv1.innerHTML = "<img src='"+ imgArr[0] +"' />";
		var dv2 = document.createElement("div");
				dv2.id = "pf_photo2";
		
		mainDv.appendChild(dv1);
		mainDv.appendChild(dv2);
		
	  image1 = document.getElementById(hldr1).childNodes[0];
		
	  setOpacity(image1, 0);
	  image1.style.visibility = 'visible';
	  fadeIn(hldr1,0);
	}
	
	this.initImages();
}
	
function setOpacity(obj, opacity) {
  opacity = (opacity == 100)?99.999:opacity;
  
  // IE/Win
  obj.style.filter = "alpha(opacity:"+opacity+")";
  
  // Safari<1.2, Konqueror
  obj.style.KHTMLOpacity = opacity/100;
  
  // Older Mozilla and Firefox
  obj.style.MozOpacity = opacity/100;
  
  // Safari 1.2, newer Firefox and Mozilla, CSS3
  obj.style.opacity = opacity/100;
}

function fadeIn(objId,opacity) {
  if (document.getElementById) {
    obj = document.getElementById(objId).childNodes[0];
    if (opacity < 100) {
			speed = (speed < 2)?2:speed;
      setOpacity(obj, opacity);
			opacityDif = Math.ceil((100-opacity)/speed);
			opacity += opacityDif;
      //opacity += 2;
      window.setTimeout("fadeIn('"+objId+"',"+opacity+")", 100);
    }
		else
			setTimeout("swapImages()",delay*1000);
  }
}

function swapImages(){
	// find out which 
	if(document.pfObj.curImg == document.pfObj.imgArr.length-1)
		document.pfObj.curImg = 0;
	else 
		++document.pfObj.curImg;

	// now get the div to hld the new image
	var dvName	= (document.pfObj.curDiv == 1)?"pf_photo2":"pf_photo1";
	var eDivName		= (document.pfObj.curDiv == 1)?"pf_photo1":"pf_photo2";
	document.pfObj.curDiv = (document.pfObj.curDiv == 1)?2:1;
	
	var tgtDiv = document.getElementById(dvName);
	var eDiv = document.getElementById(eDivName);
	
	// now fill the target div
	tgtDiv.innerHTML = "<img src='"+ document.pfObj.imgArr[document.pfObj.curImg] +"' style='visibility:hidden;' />";
	
	//move the divs around in z-index
	eDiv.style.zIndex = 0;
	tgtDiv.style.zIndex = 1;
	
	// And finally fade in the image
	
  var img = tgtDiv.childNodes[0];
	
  setOpacity(img, 0);
  img.style.visibility = 'visible';
  fadeIn(tgtDiv.id,0);
}

// tank colour switcher //
function showTankImage(colourName){
	var imgName = '/images/tank' + '-' + colourName + '.jpg';
	var img = document.images['tankImage'].src = ''+imgName;
	colourDiv = document.getElementById('colour');
	colourDiv.innerHTML = colourName.replace(/-/,' ');
	return false;
}