/* ===================================================
	Global Javascripts - Dyson US
	Version: v1.0
	Author: James Taylor - 28/03/2007
/* =================================================*/

/* Break out of frames */
if (top.location != location) top.location.href = document.location.href;

/* Global Flags */
var w3 = !!(document.getElementById && document.createElement);
var browser = identifyBrowser();

function stopDefaultAction(event) {
	event.returnValue = false;
	if (typeof event.preventDefault != "undefined"){
		event.preventDefault();
	}
	return true;
}

/* 
	Gets all elements that match an attribute and attribute value pair
	E.G. var arrGoogleLinks = getElementsByAttribute("href","http://www.google.com");
*/
function getElementsByAttribute(attribute, attributeValue){
	var elementArray = new Array();
	var matchedArray = new Array();
	if (document.all){
		elementArray = document.all;
	}else{
	    elementArray = document.getElementsByTagName("*");
	}
	for (var i = 0; i < elementArray.length; i++){
		if (attribute == "class"){
			var pattern = new RegExp("(^| )" + attributeValue + "( |$)");
			if (elementArray[i].className.match(pattern)){
		        matchedArray[matchedArray.length] = elementArray[i];
			}
	    }else if (attribute == "for"){
			if (elementArray[i].getAttribute("htmlFor") || elementArray[i].getAttribute("for")){
				if (elementArray[i].htmlFor == attributeValue){
					matchedArray[matchedArray.length] = elementArray[i];
				}
			}
		}else if (elementArray[i].getAttribute(attribute) == attributeValue){
			matchedArray[matchedArray.length] = elementArray[i];
		}
	}
	return matchedArray;
}

// hide / show errors in forms
function showError(idField, idErr, strMsg) {
	if(!$(idErr)){
		var errorSpan = document.createElement("span");
		var errorMessage = document.createTextNode(strMsg);
	    errorSpan.appendChild(errorMessage);
		errorSpan.className = "err";
		errorSpan.id = idErr;
		var cont = $(idField).parentNode;
		cont.appendChild(errorSpan);
	}
}
function hideError(idErr) {
	if($(idErr)){
		var errorSpan = $(idErr);
		var cont = errorSpan.parentNode;
		cont.removeChild(errorSpan);
	}
}
function trim(stringToTrim) {
	return stringToTrim.replace(/^\s+|\s+$/g,"");
}
function isValidEmail(str) {
	var at="@";
	var dot=".";
	var lat=str.indexOf(at);
	var lstr=str.length;
	var ldot=str.indexOf(dot);
	if (str.indexOf(at)==-1) return false;
	if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr) return false;
	if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr) return false;
	if (str.indexOf(at,(lat+1))!=-1) return false;
	if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot) return false;
	if (str.indexOf(dot,(lat+2))==-1) return false;
	if (str.indexOf(" ")!=-1) return false;
	return true					
}




/* 
	returns browser & version
	E.G. "ie7" or "ie5mac" or "mozilla" or "opera7" or "safari1.2"
*/
function identifyBrowser() {
	var agent = navigator.userAgent.toLowerCase();
	if (typeof navigator.vendor != "undefined" && navigator.vendor == "KDE" && typeof window.sidebar != "undefined")  {
		return "kde";
	}else if (typeof window.opera != "undefined"){
		var version = parseFloat(agent.replace(/.*opera[\/ ]([^ $]+).*/, "$1"));
	    if (version >= 7){
			return "opera7";
		}else if (version >= 5){
			return "opera5";
		}
	    return false;
	}else if (typeof document.all != "undefined"){
		if (typeof document.getElementById != "undefined"){
			var browser = agent.replace(/.*ms(ie[\/ ][^ $]+).*/, "$1").replace(/ /, "");
			if (typeof document.uniqueID != "undefined"){
				if (browser.indexOf("5.5") != -1){
					return browser.replace(/(.*5\.5).*/, "$1");
				}else{
					return browser.replace(/(.*)\..*/, "$1");
				}
      		}else{
				return "ie5mac";
			}
		}
		return false;
	}else if (typeof document.getElementById != "undefined")  {
		if (navigator.vendor.indexOf("Apple Computer, Inc.") != -1){
			if (typeof window.XMLHttpRequest != "undefined"){
				return "safari1.2";
			}
			return "safari1";
		}else if (agent.indexOf("gecko") != -1){
			return "mozilla";
		}
	}
	return false;
}

function getRoughPosition(ele, dir){
	var pos = dir == 'x' ? ele.offsetLeft : ele.offsetTop;
	var tmp = ele.offsetParent;
	while (tmp != null){
		pos += dir == 'x' ? tmp.offsetLeft : tmp.offsetTop;
    	tmp = tmp.offsetParent;
	}
	return pos;
}

function getViewportSize(){
	var size = [0,0];
	if (typeof window.innerWidth != 'undefined'){
		size = [window.innerWidth,window.innerHeight];
	}
	else if (typeof document.documentElement != 'undefined' && typeof document.documentElement.clientWidth != 'undefined' && document.documentElement.clientWidth != 0){
    	size = [document.documentElement.clientWidth,document.documentElement.clientHeight];
  	}else{
    	size = [$$('body')[0].clientWidth,$$('body')[0].clientHeight];
	}
	return size;
}

/*function initLocationMenu() {
	if(!w3) return;
	if(browser=="safari1.2") return;
	if($("nav_international_select")){
		var slDd = $("nav_international_select");
		var options = $$("#nav_international_select option");
		if(options.length > 1){
			strImgPath = "/chfr/images/flags/"
			var div = document.createElement("div");
			div.setAttribute("id","dvLocation");
			var ul = document.createElement("ul");
			ul.setAttribute("id","navLocation");
			ul.setAttribute("class","clear");
			div.style.display="none";
			var strSelText, strSelImg
			for(var i=0;i < options.length; i++){
				var strUrl = options[i].getAttribute("value");
				if(strUrl!=""){
					var strId = options[i].getAttribute("id");
					var text = options[i].firstChild;
					if(options[i].getAttribute("selected")){
						strSelText = text.nodeValue;
						if(strId!="OTHER"){ strSelImg = strImgPath + strId + ".gif"; }
					} else {
						var strText = text.nodeValue;
						var li = document.createElement("li");
						var a = document.createElement("a");
						a.setAttribute("href",strUrl);
						text = document.createTextNode(strText);
						var img = document.createElement("img");
						var imgSrc = strImgPath + strId + ".gif";
						img.setAttribute("src",imgSrc);
						img.setAttribute("alt",strText);
						a.appendChild(text);
						if(strId!="OTHER") a.appendChild(img);
						li.appendChild(a);
						ul.appendChild(li);
						div.appendChild(ul);
					}
				}
			}
			var ulTrig = document.createElement("ul");
			ulTrig.setAttribute("id","trigger");
			var liTrig = document.createElement("li");
			var aTrig = document.createElement("a");
			aTrig.setAttribute("href","#");
			Event.observe(aTrig,"click",toggleMenu);
			Event.observe(window,"resize",positionMenu);
			var txtTrig = document.createTextNode("Change Location");
			var imgTrig = document.createElement("img");
			imgTrig.setAttribute("alt",strSelText);
			imgTrig.setAttribute("src",strSelImg);
			aTrig.appendChild(txtTrig);
			aTrig.appendChild(imgTrig);
			liTrig.appendChild(aTrig);
			ulTrig.appendChild(liTrig);
			var loc = $("siteLocation");
			loc.innerHTML = "";
			loc.appendChild(ulTrig);
			loc.appendChild(div);
			$("topline").addClassName("script");
		}
	}
}*/

function initLocationMenu(myDropDownId, myLocation, myIndex) {
	if(!w3) return;
	if(browser=="safari1.2") return;
	if($(myDropDownId)){
		var slDd = $(myDropDownId);
		var options = $$("#" + myDropDownId + " option");
		if(options.length > 1){
			strImgPath = "/images/flags/"
			var div = document.createElement("div");
			div.setAttribute("id","dvLocation" + myIndex);
			var ul = document.createElement("ul");
			ul.setAttribute("id","navLocation" + myIndex);
			ul.setAttribute("class","clear");
			div.style.display="none";
			var strSelText, strSelImg
			for(var i=0;i < options.length; i++){
				var strUrl = options[i].getAttribute("value");
				if(strUrl!=""){
					var strId = options[i].getAttribute("id");
					var text = options[i].firstChild;
					if(options[i].getAttribute("selected")){
						strSelText = text.nodeValue;
						if(strId!="OTHER"){ strSelImg = strImgPath + strId + ".gif"; }
					} else {
						var strText = text.nodeValue;
						var li = document.createElement("li");
						var a = document.createElement("a");
						a.setAttribute("href",strUrl);
						text = document.createTextNode(strText);
						var img = document.createElement("img");
						var imgSrc = strImgPath + strId + ".gif";
						img.setAttribute("src",imgSrc);
						img.setAttribute("alt",strText);
						a.appendChild(text);
						if(strId!="OTHER") a.appendChild(img);
						li.appendChild(a);
						ul.appendChild(li);
						div.appendChild(ul);
					}
				}
			}
			var ulTrig = document.createElement("ul");
			ulTrig.setAttribute("id","trigger" + myIndex);
			var liTrig = document.createElement("li");
			var aTrig = document.createElement("a");
			aTrig.setAttribute("href","#");
			Event.observe(aTrig,"click", function(event) {toggleMenu(event, myIndex);});
			Event.observe(window,"resize", function(event) {positionMenu(event, myIndex);});
			var txtTrig = document.createTextNode("Change location");
			var imgTrig = document.createElement("img");
			imgTrig.setAttribute("alt",strSelText);
			imgTrig.setAttribute("src",strSelImg);
			aTrig.appendChild(txtTrig);
			aTrig.appendChild(imgTrig);
			liTrig.appendChild(aTrig);
			ulTrig.appendChild(liTrig);
			var loc = $(myLocation);
			loc.innerHTML = "";
			loc.appendChild(ulTrig);
			loc.appendChild(div);
			$("topline" + myIndex).addClassName("script");
		}
	}
}

function toggleMenu(event, myIndex){
	if(!w3) return;
	if($("dvLocation" + myIndex)){
		if($("dvLocation" + myIndex).style.display=="block"){
			$("dvLocation" + myIndex).style.display="none";
		} else {
			$("dvLocation" + myIndex).style.display="block";
			positionMenu($("dvLocation" + myIndex), myIndex);
		}
	}
	stopDefaultAction(event)	
}

function positionMenu(event, myIndex) {
	if($("dvLocation" + myIndex) && $("trigger" + myIndex)){
		var ePos = Position.cumulativeOffset($("trigger" + myIndex)); // get position of trigger link
		var padding = parseInt($("dvLocation" + myIndex).offsetHeight / 6) + 5; // calculate pixel padding
		var extentY = ePos[1] + $("dvLocation" + myIndex).offsetHeight + padding; // calculate max height for drop DOWN menu
		var viewSize = getViewportSize();
		var viewHeight = viewSize[1]; // get current window height
		$("header").setStyle({ position: "relative" });
		$("footer").setStyle({ position: "relative" });
		$("dvLocation" + myIndex).setStyle({ position: "absolute" });
		if(extentY > viewHeight) { // position menu above trigger link
			var itop = $("dvLocation" + myIndex).offsetHeight;
			$("dvLocation" + myIndex).style.top = "-" + itop +"px";
		}else { // position menu below trigger link
			if (myIndex = "Head")
			{
				yPos = 20;
			}
			else
			{
				yPos = 0;
			}
			$("dvLocation" + myIndex).style.top = yPos + "px";
		}
		if(browser=="ie7") { $("dvLocation" + myIndex).className = "ie"; } 
	}
}

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"; 
 } 
}


Event.observe(window,"load",function() { initLocationMenu('nav_international_select', 'siteLocation', ''); initLocationMenu('nav_international_select', 'siteLocationHead', 'Head');  });
window.onload = externalLinks;