Object.extend(Element, {
	setWidth: function(element,w) {
	   	element = $(element);
    	element.style.width = w +'px';
	},
	setHeight: function(element,h) {
   		element = $(element);
    	element.style.height = h +'px';
	},
	setTop: function(element,t) {
	   	element = $(element);
    	element.style.top = t +'px';
	},
	setSrc: function(element,src) {
    	element = $(element);
    	element.src = src; 
	},
	setHref: function(element,href) {
    	element = $(element);
    	element.href = href; 
	},
	setInnerHTML: function(element,content) {
		element = $(element);
		element.innerHTML = content;
	}
});

Array.prototype.removeDuplicates = function () {
	for(i = 1; i < this.length; i++){
		if(this[i][0] == this[i-1][0]){
			this.splice(i,1);
		}
	}
}

Array.prototype.empty = function () {
	for(i = 0; i <= this.length; i++){
		this.shift();
	}
}

//Event.observe(window, 'load', initialize, false);
//Event.observe(window, 'load', getBrowserInfo, false);
//Event.observe(window, 'unload', Event.unloadCache, false);

var detect = navigator.userAgent.toLowerCase();
var OS,browser,version,total,thestring;
var Lightbox = Class.create();

Lightbox.prototype = {
	
	initialize: function(ctrl) {
		this.content = ctrl.rel;
		Event.observe(ctrl, 'click', this.activate.bindAsEventListener(this), false);
		ctrl.onclick = function(){return false;};

		var objBody = document.getElementsByTagName('body').item(0);
		//var objOverlay = document.createElement('div');
		
		//objOverlay.setAttribute('id','overlay');
		//objBody.appendChild(objOverlay);
		//Event.observe('overlay', 'click', this.end.bindAsEventListener(this), false);
	},
	
	start: function() {	

		hideSelectBoxes();

		var arrayPageSize = getPageSize();
		//Element.setHeight('overlay', arrayPageSize[1]);
		//Element.setStyle('overlay', {display:'block'});

		var arrayPageSize = getPageSize();
		var arrayPageScroll = getPageScroll();
		var lightboxTop = arrayPageScroll[1] + (arrayPageSize[3] / 15);
		//Element.setTop(this.content, lightboxTop);
		Element.setStyle(this.content, {display:'block'});

	},

	end: function() {
		Element.hide(this.content);
		//Element.hide('overlay');
		showSelectBoxes();
	},

	actions: function(){
		lbActions = document.getElementsByClassName('lbAction');

		for(i = 0; i < lbActions.length; i++) {
			Event.observe(lbActions[i], 'click', this[lbActions[i].rel].bindAsEventListener(this), false);
			lbActions[i].onclick = function(){return false;};
		}

	},

	activate: function(){
		this.start();
		this.displayLightbox('block');
	},

	deactivate: function(){
		this.end();
		this.displayLightbox('none');
	},

	displayLightbox: function(display){
		if(display != 'none') this.actions();		
	}
}

function initialize(){
	lbox = document.getElementsByClassName('lbOn');
	lboxAuto = document.getElementsByClassName('lbOnAuto');
	for(i = 0; i < lbox.length; i++) {
		valid = new Lightbox(lbox[i]);
	}
	for(i = 0; i < lboxAuto.length; i++) {
			validAuto = new Lightbox(lboxAuto[i]);
			validAuto.activate();
	}
}

function setScroll(x, y){
	window.scrollTo(x, y); 
}
	
function getPageScroll(){

	var yScroll;

	if (self.pageYOffset) {
		yScroll = self.pageYOffset;
	} else if (document.documentElement && document.documentElement.scrollTop){	 // Explorer 6 Strict
		yScroll = document.documentElement.scrollTop;
	} else if (document.body) {// all other Explorers
		yScroll = document.body.scrollTop;
	}

	arrayPageScroll = new Array('',yScroll) 
	return arrayPageScroll;
}

function getPageSize(){
	
	var xScroll, yScroll;
	
	if (window.innerHeight && window.scrollMaxY) {	
		xScroll = document.body.scrollWidth;
		yScroll = window.innerHeight + window.scrollMaxY;
	} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
		xScroll = document.body.scrollWidth;
		yScroll = document.body.scrollHeight;
	} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
		xScroll = document.body.offsetWidth;
		yScroll = document.body.offsetHeight;
	}
	
	var windowWidth, windowHeight;
	if (self.innerHeight) {	// all except Explorer
		windowWidth = self.innerWidth;
		windowHeight = self.innerHeight;
	} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
		windowWidth = document.documentElement.clientWidth;
		windowHeight = document.documentElement.clientHeight;
	} else if (document.body) { // other Explorers
		windowWidth = document.body.clientWidth;
		windowHeight = document.body.clientHeight;
	}	
	
	if(yScroll < windowHeight){
		pageHeight = windowHeight;
	} else { 
		pageHeight = yScroll;
	}

	if(xScroll < windowWidth){	
		pageWidth = windowWidth;
	} else {
		pageWidth = xScroll;
	}


	arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight) 
	return arrayPageSize;
}

function showSelectBoxes(){
	selects = document.getElementsByTagName('select');
	for (i = 0; i != selects.length; i++) {
		selects[i].style.visibility = 'visible';
	}
}

function hideSelectBoxes(){
	selects = document.getElementsByTagName('select');
	for (i = 0; i != selects.length; i++) {
		selects[i].style.visibility = 'hidden';
	}
}

function pause(numberMillis) {
	var now = new Date();
	var exitTime = now.getTime() + numberMillis;
	while (true) {
		now = new Date();
		if (now.getTime() > exitTime)
			return;
	}
}

function getBrowserInfo() {
	if (checkIt('konqueror')) {
		browser = 'Konqueror';
		OS = 'Linux';
	}
	else if (checkIt('safari')) browser 	= 'Safari'
	else if (checkIt('omniweb')) browser 	= 'OmniWeb'
	else if (checkIt('opera')) browser 		= 'Opera'
	else if (checkIt('webtv')) browser 		= 'WebTV';
	else if (checkIt('icab')) browser 		= 'iCab'
	else if (checkIt('msie')) browser 		= 'Internet Explorer'
	else if (!checkIt('compatible')) {
		browser = 'Netscape Navigator'
		version = detect.charAt(8);
	}
	else browser = 'An unknown browser';

	if (!version) version = detect.charAt(place + thestring.length);

	if (!OS) {
		if (checkIt('linux')) OS 		= 'Linux';
		else if (checkIt('x11')) OS 	= 'Unix';
		else if (checkIt('mac')) OS 	= 'Mac'
		else if (checkIt('win')) OS 	= 'Windows'
		else OS 								= 'an unknown operating system';
	}
}

function checkIt(string) {
	place = detect.indexOf(string) + 1;
	thestring = string;
	return place;
}

function alertLightBox(boxName) {
	lboxAlert = document.getElementsByClassName('lbOnAlert'+boxName);
	for(i = 0; i < lboxAlert.length; i++) {
		validAlert = new Lightbox(lboxAlert[i]);
		validAlert.activate();
	}
}