/*
* content changer
*/

var menuChanger = null;

var ContentChanger = new Class({
	rootElement: null,
	items:null,
	numItems:0,
	currentItem:0,
	initialize: function(rootElement){
		this.rootElement = $(rootElement);
		if(this.rootElement){
			this.items = this.rootElement.getElements("div.item");
			this.items ? this.numItems = this.items.length : null;
			if(this.numItems>1){
				this.items.each( function(elm,index){
					elm.setStyle("display","none");
				});
				this.show(this.currentItem);
			}
		}
		else{
			alert("Can't find root element "+rootElement);	
		}
	},
	showNext: function(){
		( this.currentItem<(this.numItems-1) ) ? this.currentItem++ : this.currentItem=0;
		this.show(this.currentItem);
	},
	showPrev: function(){
		(this.currentItem==0 ) ? this.currentItem = (this.numItems-1) : this.currentItem--;
		this.show(this.currentItem);
	},
	show: function(indexToShow){
		this.items.each( function(elm,index){
			( index==indexToShow ) ? elm.setStyle("display","block") : elm.setStyle("display","none");
		});
	}
});

/*
* content fader
*/

var phraseFader = null;

var ContentFader = new Class({
	rootElement: null,
	items:null,
	numItems:0,
	currentItem:0,
	timer: null,
	initialize: function(rootElement,refreshTime){
		var self = this;
		this.rootElement = $(rootElement);
		if(this.rootElement){
			this.items = this.rootElement.getElements("p");
			this.items ? this.numItems = this.items.length : null;
			if(this.numItems>1){
				this.items.each( function(elm,index){
					elm.setStyle("opacity","0");
					var morph = new Fx.Morph(elm, { duration: '2000' });
					elm.store("morph", morph);
				});
				this.showCurrent(this.currentItem);
				var test = function(){
					this.showNext();
				}.bind(this);
				this.timer = test.periodical(refreshTime);
			}
		}
		else{
			alert("Can't find root element "+rootElement);	
		}
	},
	showNext: function(){
		this.hideCurrent(this.currentItem);
		( this.currentItem<(this.numItems-1) ) ? this.currentItem++ : this.currentItem=0;
		this.showCurrent(this.currentItem);
	},
	showPrev: function(){
		this.hideCurrent(this.currentItem);
		(this.currentItem==0 ) ? this.currentItem = (this.numItems-1) : this.currentItem--;
		this.showCurrent(this.currentItem);
	},
	showCurrent: function(indexToShow){
		this.items[indexToShow].retrieve("morph").start({"opacity":"0.5"});
	},
	hideCurrent: function(indexToShow){
		this.items[indexToShow].retrieve("morph").start({"opacity":"0"});
	}
});

/*
* modal popup
*/

var mask = null;
var bodyContent = null;
var popUp = null;

function showPopUp( url ){
	bodyContent = $(document.body);
	if ( bodyContent ){
		popUp = $("popUp");
		var menus = $("menus");
		if ( popUp ){
			// load the mask
			mask = new Mask(bodyContent,{
				hideOnClick : true,
				useIframeShim : true,
				style : {
					"backgroundColor": "#000",
					"opacity": 0.8
				},
				onClick: function(evt){
					popUp.setStyle( 'display', 'none' );
				}
			});
			mask.show();
			popUp.setStyle( 'display', 'block' );
			popUp.setStyle( 'left', -999999 );
			
			// load the request
			var request = new Request.HTML({
				link : "cancel",
				url: url,
				evalScripts : false,
				onFailure: function(){
					mask.hide();
					popUp.setStyle( 'display', 'none' );
					alert("Unable to load page, please contact us.");
				}.bind(this),
				onSuccess: function(nodeTree,nodeList, HTML, JavaScript) {
					
					for(var x=0; x<nodeList.length; x++){
						var elm = nodeList[x];
						if ( elm.id == 'menus' ){
							var currContents = $('menus');
							if( currContents ){
								currContents.dispose();
							}
							popUp.adopt(elm);
							eval(JavaScript);			
						}
						break;
					}
					
					menuChanger = new ContentChanger("contentChanger");
					if( menuChanger.numItems>1 ){
						$("prevLink").addEvent("click", function(evt){
							menuChanger.showPrev();
							this.blur();
						});
						$("nextLink").addEvent("click", function(evt){
							menuChanger.showNext();
							this.blur();
						});
						$$(".menuFooterNav li a").each(function(elm,index){
							elm.addEvent("click",function(evt){
								evt.preventDefault();
								menuChanger.show(index);
								this.blur();
							});
						});
					}
					$("popUpClose").addEvent("click",function(evt){
						evt.preventDefault();
						mask.hide();
						popUp.setStyle( 'display', 'none' );
						this.blur();
					});

					centrePopup();
				}
			}).get()
			
		}
	}
}

function centrePopup(){
	if( mask && popUp ){
		var containerDimensions = bodyContent.getCoordinates();
		var popUpDimensions = popUp.getCoordinates();
		var maxHeight = (0.8*window.getSize().y);
		if( containerDimensions.height>maxHeight ){
		  /* containerDimensions.height = maxHeight;*/
		   popUpDimensions.height = maxHeight;
		   popUp.setStyle("height",maxHeight+"px");
		   var contentChanger = $("contentChanger");
		   if( contentChanger ){
			   contentChanger.setStyle("height",(maxHeight-155)+"px");
		   }
		   else{
			   var delayedFunc = function(){
				   $("contentChanger").setStyle("height",(maxHeight-155)+"px");
			   };
			   delayedFunc.delay(750);
		   }
		}
		var posTop = (containerDimensions.height * .5) - (popUpDimensions.height * .5);
		var posLeft = (containerDimensions.width * .5) - (popUpDimensions.width * .5);
		popUp.setStyle( 'top', posTop );
		popUp.setStyle( 'left', posLeft );
		popUp.setStyle( 'z-index', "999999" );
		popUp.setStyle( 'position', "absolute" );
		mask.position();
	}
}

/*
* dom ready
*/

window.addEvent("domready", function(){
	// inject the popup div and set height to be 90% window height
	var popUp = new Element("div",{
		id:"popUp"
    });
	$(document.body).grab(popUp);
	popUp.setStyle("height","555px");

	// get rid of ugly outline when links are clicked and apply popup events
	$$("a").each(function(elm){
		elm.addEvent("click",function(evt){
			if( this.rel.indexOf("kamPopUp")!=-1 ){
				evt.preventDefault();
				showPopUp(this.href);
			}
			if( this.rel.indexOf("kamNewWindow")!=-1 ){
				evt.preventDefault();
				window.open(this.href);
			}
   			this.blur();
		});
	});
	
	// centre modal on window resize
	window.addEvent("resize", function(evt){
		if( mask && bodyContent ){
			centrePopup();
		}
	});
	
	// apply png fix for IE6
	if( Browser.Engine.trident4 ){
		DD_belatedPNG.fix('.contentholder img');
		DD_belatedPNG.fix('#inset img');
	}
	
	// setup scrolling image caption
	var imageHolder = $("imageholder");
	if( imageHolder ){
		phraseFader = new ContentFader(imageHolder,7500);
	}
	
});

/**
* DD_belatedPNG: Adds IE6 support: PNG images for CSS background-image and HTML <IMG/>.
* Author: Drew Diller
* Email: drew.diller@gmail.com
* URL: http://www.dillerdesign.com/experiment/DD_belatedPNG/
* Version: 0.0.8a
* Licensed under the MIT License: http://dillerdesign.com/experiment/DD_belatedPNG/#license
*
* Example usage:
* DD_belatedPNG.fix('.png_bg'); // argument is a CSS selector
* DD_belatedPNG.fixPng( someNode ); // argument is an HTMLDomElement
**/
var DD_belatedPNG={ns:"DD_belatedPNG",imgSize:{},delay:10,nodesFixed:0,createVmlNameSpace:function(){if(document.namespaces&&!document.namespaces[this.ns]){document.namespaces.add(this.ns,"urn:schemas-microsoft-com:vml")}},createVmlStyleSheet:function(){var b,a;b=document.createElement("style");b.setAttribute("media","screen");document.documentElement.firstChild.insertBefore(b,document.documentElement.firstChild.firstChild);if(b.styleSheet){b=b.styleSheet;b.addRule(this.ns+"\\:*","{behavior:url(#default#VML)}");b.addRule(this.ns+"\\:shape","position:absolute;");b.addRule("img."+this.ns+"_sizeFinder","behavior:none; border:none; position:absolute; z-index:-1; top:-10000px; visibility:hidden;");this.screenStyleSheet=b;a=document.createElement("style");a.setAttribute("media","print");document.documentElement.firstChild.insertBefore(a,document.documentElement.firstChild.firstChild);a=a.styleSheet;a.addRule(this.ns+"\\:*","{display: none !important;}");a.addRule("img."+this.ns+"_sizeFinder","{display: none !important;}")}},readPropertyChange:function(){var b,c,a;b=event.srcElement;if(!b.vmlInitiated){return}if(event.propertyName.search("background")!=-1||event.propertyName.search("border")!=-1){DD_belatedPNG.applyVML(b)}if(event.propertyName=="style.display"){c=(b.currentStyle.display=="none")?"none":"block";for(a in b.vml){if(b.vml.hasOwnProperty(a)){b.vml[a].shape.style.display=c}}}if(event.propertyName.search("filter")!=-1){DD_belatedPNG.vmlOpacity(b)}},vmlOpacity:function(b){if(b.currentStyle.filter.search("lpha")!=-1){var a=b.currentStyle.filter;a=parseInt(a.substring(a.lastIndexOf("=")+1,a.lastIndexOf(")")),10)/100;b.vml.color.shape.style.filter=b.currentStyle.filter;b.vml.image.fill.opacity=a}},handlePseudoHover:function(a){setTimeout(function(){DD_belatedPNG.applyVML(a)},1)},fix:function(a){if(this.screenStyleSheet){var c,b;c=a.split(",");for(b=0;b<c.length;b++){this.screenStyleSheet.addRule(c[b],"behavior:expression(DD_belatedPNG.fixPng(this))")}}},applyVML:function(a){a.runtimeStyle.cssText="";this.vmlFill(a);this.vmlOffsets(a);this.vmlOpacity(a);if(a.isImg){this.copyImageBorders(a)}},attachHandlers:function(i){var d,c,g,e,b,f;d=this;c={resize:"vmlOffsets",move:"vmlOffsets"};if(i.nodeName=="A"){e={mouseleave:"handlePseudoHover",mouseenter:"handlePseudoHover",focus:"handlePseudoHover",blur:"handlePseudoHover"};for(b in e){if(e.hasOwnProperty(b)){c[b]=e[b]}}}for(f in c){if(c.hasOwnProperty(f)){g=function(){d[c[f]](i)};i.attachEvent("on"+f,g)}}i.attachEvent("onpropertychange",this.readPropertyChange)},giveLayout:function(a){a.style.zoom=1;if(a.currentStyle.position=="static"){a.style.position="relative"}},copyImageBorders:function(b){var c,a;c={borderStyle:true,borderWidth:true,borderColor:true};for(a in c){if(c.hasOwnProperty(a)){b.vml.color.shape.style[a]=b.currentStyle[a]}}},vmlFill:function(e){if(!e.currentStyle){return}else{var d,f,g,b,a,c;d=e.currentStyle}for(b in e.vml){if(e.vml.hasOwnProperty(b)){e.vml[b].shape.style.zIndex=d.zIndex}}e.runtimeStyle.backgroundColor="";e.runtimeStyle.backgroundImage="";f=true;if(d.backgroundImage!="none"||e.isImg){if(!e.isImg){e.vmlBg=d.backgroundImage;e.vmlBg=e.vmlBg.substr(5,e.vmlBg.lastIndexOf('")')-5)}else{e.vmlBg=e.src}g=this;if(!g.imgSize[e.vmlBg]){a=document.createElement("img");g.imgSize[e.vmlBg]=a;a.className=g.ns+"_sizeFinder";a.runtimeStyle.cssText="behavior:none; position:absolute; left:-10000px; top:-10000px; border:none; margin:0; padding:0;";c=function(){this.width=this.offsetWidth;this.height=this.offsetHeight;g.vmlOffsets(e)};a.attachEvent("onload",c);a.src=e.vmlBg;a.removeAttribute("width");a.removeAttribute("height");document.body.insertBefore(a,document.body.firstChild)}e.vml.image.fill.src=e.vmlBg;f=false}e.vml.image.fill.on=!f;e.vml.image.fill.color="none";e.vml.color.shape.style.backgroundColor=d.backgroundColor;e.runtimeStyle.backgroundImage="none";e.runtimeStyle.backgroundColor="transparent"},vmlOffsets:function(d){var h,n,a,e,g,m,f,l,j,i,k;h=d.currentStyle;n={W:d.clientWidth+1,H:d.clientHeight+1,w:this.imgSize[d.vmlBg].width,h:this.imgSize[d.vmlBg].height,L:d.offsetLeft,T:d.offsetTop,bLW:d.clientLeft,bTW:d.clientTop};a=(n.L+n.bLW==1)?1:0;e=function(b,p,q,c,s,u){b.coordsize=c+","+s;b.coordorigin=u+","+u;b.path="m0,0l"+c+",0l"+c+","+s+"l0,"+s+" xe";b.style.width=c+"px";b.style.height=s+"px";b.style.left=p+"px";b.style.top=q+"px"};e(d.vml.color.shape,(n.L+(d.isImg?0:n.bLW)),(n.T+(d.isImg?0:n.bTW)),(n.W-1),(n.H-1),0);e(d.vml.image.shape,(n.L+n.bLW),(n.T+n.bTW),(n.W),(n.H),1);g={X:0,Y:0};if(d.isImg){g.X=parseInt(h.paddingLeft,10)+1;g.Y=parseInt(h.paddingTop,10)+1}else{for(j in g){if(g.hasOwnProperty(j)){this.figurePercentage(g,n,j,h["backgroundPosition"+j])}}}d.vml.image.fill.position=(g.X/n.W)+","+(g.Y/n.H);m=h.backgroundRepeat;f={T:1,R:n.W+a,B:n.H,L:1+a};l={X:{b1:"L",b2:"R",d:"W"},Y:{b1:"T",b2:"B",d:"H"}};if(m!="repeat"||d.isImg){i={T:(g.Y),R:(g.X+n.w),B:(g.Y+n.h),L:(g.X)};if(m.search("repeat-")!=-1){k=m.split("repeat-")[1].toUpperCase();i[l[k].b1]=1;i[l[k].b2]=n[l[k].d]}if(i.B>n.H){i.B=n.H}d.vml.image.shape.style.clip="rect("+i.T+"px "+(i.R+a)+"px "+i.B+"px "+(i.L+a)+"px)"}else{d.vml.image.shape.style.clip="rect("+f.T+"px "+f.R+"px "+f.B+"px "+f.L+"px)"}},figurePercentage:function(d,c,f,a){var b,e;e=true;b=(f=="X");switch(a){case"left":case"top":d[f]=0;break;case"center":d[f]=0.5;break;case"right":case"bottom":d[f]=1;break;default:if(a.search("%")!=-1){d[f]=parseInt(a,10)/100}else{e=false}}d[f]=Math.ceil(e?((c[b?"W":"H"]*d[f])-(c[b?"w":"h"]*d[f])):parseInt(a,10));if(d[f]%2===0){d[f]++}return d[f]},fixPng:function(c){c.style.behavior="none";var g,b,f,a,d;if(c.nodeName=="BODY"||c.nodeName=="TD"||c.nodeName=="TR"){return}c.isImg=false;if(c.nodeName=="IMG"){if(c.src.toLowerCase().search(/\.png$/)!=-1){c.isImg=true;c.style.visibility="hidden"}else{return}}else{if(c.currentStyle.backgroundImage.toLowerCase().search(".png")==-1){return}}g=DD_belatedPNG;c.vml={color:{},image:{}};b={shape:{},fill:{}};for(a in c.vml){if(c.vml.hasOwnProperty(a)){for(d in b){if(b.hasOwnProperty(d)){f=g.ns+":"+d;c.vml[a][d]=document.createElement(f)}}c.vml[a].shape.stroked=false;c.vml[a].shape.appendChild(c.vml[a].fill);c.parentNode.insertBefore(c.vml[a].shape,c)}}c.vml.image.shape.fillcolor="none";c.vml.image.fill.type="tile";c.vml.color.fill.on=false;g.attachHandlers(c);g.giveLayout(c);g.giveLayout(c.offsetParent);c.vmlInitiated=true;g.applyVML(c)}};try{document.execCommand("BackgroundImageCache",false,true)}catch(r){}DD_belatedPNG.createVmlNameSpace();DD_belatedPNG.createVmlStyleSheet();