var featured = new Array();
var http = getHTTPObject();
function init() {
	if(!document.getElementById) {return false;}
		try {
			document.execCommand('BackgroundImageCache', false, true);
		} catch(e) {}
	if(document.getElementsByTagName("body")[0].className == "home") {
		featuredEffects();
	//	showFeatured();
	}
	if(document.getElementsByTagName("body")[0].className == "portfolio") {
		makeHovers();
	}
	if(document.getElementsByTagName("body")[0].className == "article") {
		moveComments();
		hoverFields("commentformarea");
		hoverButtons();
	}
	if((document.getElementsByTagName("body")[0].className == "about") || (document.getElementsByTagName("body")[0].className == "contact")) {
		emailCloak();
	}
	if(document.getElementsByTagName("body")[0].className == "contact") {
		hoverFields("contactform");
		hoverButtons();
		}
	
	determineStyle();
}

function featuredEffects() {
	featured = document.getElementById("works").getElementsByTagName("li");
	for(var q = 0; q < featured.length; q++) {
		featured[q].getElementsByTagName("a")[0].style.backgroundPosition = "0 0";
		featured[q].onmouseover = function() {
			for(var w = 0; w < featured.length; w++) {featured[w].getElementsByTagName("a")[0].style.backgroundPosition = "0 100%";}
				this.getElementsByTagName("a")[0].style.backgroundPosition = "0 50%";
			}
			featured[q].onmouseout = function() {for(var w = 0; w < featured.length; w++) {featured[w].getElementsByTagName("a")[0].style.backgroundPosition = "0 50%";}}
		}
	var featuredZone = document.getElementById("works");
	featuredZone.onmouseout = function() {for(var w = 0; w < featured.length; w++) {featured[w].getElementsByTagName("a")[0].style.backgroundPosition = "0 0";}}
}

function getHTTPObject() {
	var xmlhttp;
	if (!xmlhttp && typeof XMLHttpRequest != 'undefined') {
	try {
	xmlhttp = new XMLHttpRequest();
	xmlhttp.overrideMimeType("text/xml");
	} catch (e) {
	xmlhttp = false;
	}
 }
 return xmlhttp;
}

function showFeatured() {
 http.open("GET", "/ui/data/featured.xml", true);
 http.onreadystatechange = doFeatured;
 http.send(null);
}

function doFeatured() {
 if (http.readyState == 4) {
 if (http.responseText.indexOf('invalid') == -1) {
 var xmlDocument = http.responseXML;
 var items = xmlDocument.getElementsByTagName("workitem");
 var uniques = new Array(6);
 for(var q = 0; q < 6; q++) {uniques[q] = 999;}
 var randomNo = 999;
 for(var q = 0; q < 6; q++) {
 while((randomNo == uniques[0]) || (randomNo == uniques[1]) || (randomNo == uniques[2]) || (randomNo == uniques[3]) || (randomNo == uniques[4]) || (randomNo == uniques[5])) {
 randomNo = Math.floor(Math.random()*items.length);
 }
 uniques[q] = randomNo;
 }
 for(var q = 0; q < 6; q++) {
 var myLink = featured[q].getElementsByTagName("a")[0];
 myLink.href = items[uniques[q]].getAttribute("href");
 myLink.title = items[uniques[q]].getAttribute("title");
 myLink.style.background = "url(" + items[uniques[q]].getAttribute("href") + "thumb.jpg) no-repeat 0 0";
 var myText = document.createTextNode(myLink.title);
 var myTextContainer = document.createElement("i");
 myTextContainer.appendChild(myText);
 myLink.replaceChild(myTextContainer, myLink.getElementsByTagName("i")[0]);
 }
 }
 }
}

function makeHovers() {
 var list = document.getElementById("portfoliolist");
 for (var q = 0; q < list.childNodes.length; q++) {
 if(list.childNodes[q].nodeName == "LI") {
 var link1 = list.childNodes[q].getElementsByTagName("a")[0];
 var link2 = list.childNodes[q].getElementsByTagName("a")[1];
 link1.onmouseover = function() {this.parentNode.getElementsByTagName("a")[1].className = "hover";}
 link1.onmouseout = function() {this.parentNode.getElementsByTagName("a")[1].className = "";}
 link2.onmouseover = function() {this.parentNode.parentNode.getElementsByTagName("a")[0].className += " hover";}
 link2.onmouseout = function() {this.parentNode.parentNode.getElementsByTagName("a")[0].className = this.parentNode.parentNode.getElementsByTagName("a")[0].className.replace(/ hover/g, "");}
 }
 }
}

function slideShow(no, sno) {
 for(var q = 0; q < sno.parentNode.parentNode.childNodes.length; q++) {if(sno.parentNode.parentNode.childNodes[q].className) {sno.parentNode.parentNode.childNodes[q].className = sno.parentNode.parentNode.childNodes[q].className.replace(/ active/g, "");}}
 sno.parentNode.className += " active";
 var obj = document.getElementById("photo").getElementsByTagName("ul")[0];
 if(obj.style.marginLeft != 0) {var x = parseInt(obj.style.marginLeft.replace(/px/g, "")); x = -x;}
 else {var x = obj.style.marginLeft;}
 --no;
 var newx = no*616;
 slideIt(x, newx);
}
function slideIt(x, newx) { //inspired by Jeremy Keith - www.adactio.com
 if (newx > x) {x += Math.ceil((newx-x)/2);}
 else if (newx < x) {x += Math.floor((newx-x)/2);}
 else if (newx == x) {return true;}
 var obj = document.getElementById("photo").getElementsByTagName("ul")[0].style.marginLeft = -x + 'px';
 var time = setTimeout('slideIt('+x+', '+newx+')', 75);
}
function moveComments() {
 var form = document.getElementById("commentformarea");
 var browserWidth = getBrowserWidth();
 if(browserWidth <= 925) {
 form.style.top = "auto";
 form.style.left = "auto";
 return;
 }
 if(browserWidth > 925) {
 var curPos = findPosY(form);
 if (window.innerHeight) {pos = window.pageYOffset;}
 else if (document.documentElement && document.documentElement.scrollTop) {pos = document.documentElement.scrollTop;}
 else if (document.body) {pos = document.body.scrollTop;}
 if(pos > curPos) {
 curPos = pos;
 form.style.top = ++curPos + 'px';
 }
 if(pos < curPos) {
 if(pos > 383) {
 curPos = pos;
 form.style.top = ++curPos + 'px';
}
 else if(pos <= 383) {
 curPos = pos;
 form.style.top = 383 + 'px';
 }
 }
 var temp = setTimeout('moveComments()',50);
 }
}
function findPosY(obj) { //inspired by Peter-Paul Koch - www.quirksmode.org
 var curtop = 0;
 if (obj.offsetParent) {
 while (obj.offsetParent) {
 curtop += obj.offsetTop
 obj = obj.offsetParent;
 }
 }
 else if (obj.y) {curtop += obj.y;}
 return curtop;
}
function hoverFields(what) {
 var elements = document.getElementById(what).getElementsByTagName("input");
for(var q = 0; q < elements.length; q++) {
 if(elements[q].parentNode.nodeName == "DIV") {
 elements[q].onfocus = function() {this.parentNode.style.backgroundPosition = "0 50%";}
 elements[q].onblur = function() {this.parentNode.style.backgroundPosition = "0 0";}
 }
 }
 var elements = document.getElementById(what).getElementsByTagName("textarea")[0];
 elements.onfocus = function() {this.parentNode.style.backgroundPosition = "0 50%";}
 elements.onblur = function() {this.parentNode.style.backgroundPosition = "0 0";}
}
function hoverButtons() {
 var buttons = document.getElementsByTagName("input");
 for(var q = 0; q < buttons.length; q++) {
 if(buttons[q].type == "image") {
 buttons[q].onmouseover = function() {this.src = this.src.replace(/_off/g, "_over");}
 buttons[q].onmouseout = function() {this.src = this.src.replace(/_over/g, "_off");}
 }
 }
}
function emailCloak() {
 if (document.getElementById) {
 var alltags = document.all? document.all : document.getElementsByTagName("*");
 for (i=0; i < alltags.length; i++) {
 if (alltags[i].className == "emailCloak") {
 var oldText = alltags[i].firstChild;
 var emailAddress = alltags[i].firstChild.nodeValue;
 var user = emailAddress.substring(0, emailAddress.indexOf("("));
 var website = emailAddress.substring(emailAddress.indexOf(")")+1, emailAddress.length);
 var newText = user+"@"+website;
 var a = document.createElement("a");
 a.href = "mailto:"+newText;
 var address = document.createTextNode(newText);
 a.appendChild(address);
 alltags[i].replaceChild(a,oldText);
 }
 }
 }
}
function getBrowserWidth() { //from ParticleTree - www.particletree.com
 if (window.innerWidth) {return window.innerWidth;}
 else if (document.documentElement && document.documentElement.clientWidth != 0) {return document.documentElement.clientWidth;}
 else if (document.body) {return document.body.clientWidth;}
 return 0;
}
function determineStyle() { //inspired by A List Apart - www.alistapart.com
 var browserWidth = getBrowserWidth();
 if(browserWidth <= 925) {
 for(var q = 0; (a = document.getElementsByTagName("link")[q]); q++) {
 a.disabled = true;
 if(a.getAttribute("title") == "narrow") a.disabled = false;
 }
 }
 if(browserWidth > 925) {
for(var q = 0; (a = document.getElementsByTagName("link")[q]); q++) {
 a.disabled = true;
 if(a.getAttribute("title") == "wide") a.disabled = false;
 }
 }
}
function doResize() {
 determineStyle();
 if(document.getElementsByTagName("body")[0].className == "article") {
 var form = document.getElementById("commentformarea");
 var browserWidth = getBrowserWidth();
 if(browserWidth <= 925) {
 form.parentNode.removeChild(form);
 document.getElementsByTagName("body")[0].appendChild(form);
 }
 if(browserWidth > 925) {
 form.parentNode.removeChild(form);
document.getElementById("infos").appendChild(form);
 }
 moveComments();
 }
}

window.onload = init;
window.onresize = doResize;