/*-------------------------------GLOBAL VARIABLES------------------------------------*/

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

/*-----------------------------------------------------------------------------------------------*/

//Browser detect script origionally created by Peter Paul Koch at http://www.quirksmode.org/

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;
}

/*-----------------------------------------------------------------------------------------------*/

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

var lightbox = Class.create();

lightbox.prototype = {

	yPos : 0,
	xPos : 0,

	initialize: function(ctrl) {
		this.content = ctrl.href;
		Event.observe(ctrl, 'click', this.activate.bindAsEventListener(this), false);
		ctrl.onclick = function(){return false;};
	},
	
	// Turn everything on - mainly the IE fixes
	activate: function(){
		if (browser == 'Internet Explorer'){
			this.getScroll();
			this.prepareIE('100%', 'hidden');
			this.setScroll(0,0);
			this.hideSelects('hidden');
		}
		this.displayLightbox("block");
		$('lightbox').style.opacity = "100";
		$('lightbox').style.top = '-171px';
		var n=0;
		function activateAnimate() {
	      if(n<=20) {
	        var newTop = parseInt($('lightbox').style.top) + n * 2.5;
	        $('lightbox').style.top = newTop+"px";
	        n++;
		    setTimeout(activateAnimate, 20);
	      }
		}
		activateAnimate();
	},
	
	// Ie requires height to 100% and overflow hidden or else you can scroll down past the lightbox
	prepareIE: function(height, overflow){
		var bod = document.getElementsByTagName('body')[0];
		bod.style.height = height;
		bod.style.overflow = overflow;
  
		var htm = document.getElementsByTagName('html')[0];
		htm.style.height = height;
		htm.style.overflow = overflow; 
	},
	
	// In IE, select elements hover on top of the lightbox
	hideSelects: function(visibility){
		var selects = document.getElementsByTagName('select');
		for(i = 0; i < selects.length; i++) {
			selects[i].style.visibility = visibility;
		}
	},
	
	// Taken from lightbox implementation found at http://www.huddletogether.com/projects/lightbox/
	getScroll: function(){
		if (self.pageYOffset) {
			this.yPos = self.pageYOffset;
		} else if (document.documentElement && document.documentElement.scrollTop){
			this.yPos = document.documentElement.scrollTop; 
		} else if (document.body) {
			this.yPos = document.body.scrollTop;
		}
	},
	
	setScroll: function(x, y){
		window.scrollTo(x, y); 
	},
	
	displayLightbox: function(display){
		$('overlay').style.display = display;
		$('lightbox').style.display = display;
		if(display != 'none') this.loadInfo();
	},
	
	// Begin Ajax request based off of the href of the clicked linked
	loadInfo: function() {
		var myAjax = new Ajax.Request(
        this.content,
        {method: 'post', parameters: "", onComplete: this.processInfo.bindAsEventListener(this)}
		);
		
	},
	
	// Display Ajax response
	processInfo: function(response){
		var info = "<div id='lbContent'>" + response.responseText + "</div>";
		new Insertion.Before($('lbLoadMessage'), info)
		$('lightbox').className = "done";	
		this.actions();			
	},
	
	// Search through new links within the lightbox, and attach click event
	actions: function(){
		var 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;};
		}

	},
	
	// Example of creating your own functionality once lightbox is initiated
	insert: function(e){
	   link = Event.element(e).parentNode;
	   Element.remove($('lbContent'));
	 
	   var myAjax = new Ajax.Request(
			  link.href,
			  {method: 'post', parameters: "", onComplete: this.processInfo.bindAsEventListener(this)}
	   );
	 
	},
	
	// Deactivates the lightbox
	deactivate: function(){
		$('lightbox').style.opacity = "100";
		var n=0;
		function deactivateLB() {
		  if($('lbContent')) {
		    Element.remove($('lbContent'));
		  }
		  $('lightbox').style.top = "-171";
		  $('lightbox').style.opacity = "100";
		  $('lightbox').style.filter = 'alpha(opacity=100)';
		  $('overlay').style.display = 'none';
		  $('lightbox').style.display = 'none';
		}
		function deactivateAnimate() {
	      if(n<=20) {
	        newTop = parseInt($('lightbox').style.top) + n;
	        newOp = parseInt($('lightbox').style.opacity) - n/2;
	        $('lightbox').style.top = newTop+"px";
			$('lightbox').style.opacity = newOp;
			$('lightbox').style.filter = 'alpha(opacity=' + newOp + ')';
	        n++;
		    setTimeout(deactivateAnimate, 20);
	      } else if(n==21) {
            setTimeout(deactivateLB,20);
		  }
		}
		deactivateAnimate();

		if (browser == "Internet Explorer"){
			this.setScroll(0,this.yPos);
			this.prepareIE("auto", "auto");
			this.hideSelects("visible");
		}
	}
}

var lightbox22 = Class.create();

lightbox22.prototype = {

	yPos2 : 0,
	xPos2 : 0,

	initialize: function(ctrl) {
		this.content = ctrl.href;
		Event.observe(ctrl, 'click', this.activate.bindAsEventListener(this), false);
		ctrl.onclick = function(){return false;};
	},
	
	// Turn everything on - mainly the IE fixes
	activate: function(){
		if (browser == 'Internet Explorer'){
			this.getScroll();
			this.prepareIE('100%', 'hidden');
			this.setScroll(0,0);
			this.hideSelects('hidden');
		}
		this.displayLightbox("block");
	},
	
	// Ie requires height to 100% and overflow hidden or else you can scroll down past the lightbox
	prepareIE: function(height, overflow){
		var bod2 = document.getElementsByTagName('body')[0];
		bod2.style.height = height;
		bod2.style.overflow = overflow;
  
		var htm2 = document.getElementsByTagName('html')[0];
		htm2.style.height = height;
		htm2.style.overflow = overflow; 
	},
	
	// In IE, select elements hover on top of the lightbox
	hideSelects: function(visibility){
		var selects = document.getElementsByTagName('select');
		for(i = 0; i < selects.length; i++) {
			selects[i].style.visibility = visibility;
		}
	},
	
	// Taken from lightbox implementation found at http://www.huddletogether.com/projects/lightbox/
	getScroll: function(){
		if (self.pageYOffset) {
			this.yPos2 = self.pageYOffset;
		} else if (document.documentElement && document.documentElement.scrollTop){
			this.yPos2 = document.documentElement.scrollTop; 
		} else if (document.body) {
			this.yPos2 = document.body.scrollTop;
		}
	},
	
	setScroll: function(x, y){
		window.scrollTo(x, y); 
	},
	
	displayLightbox: function(display){
		$('overlay').style.display = display;
		$('lightbox2').style.display = display;
		if(display != 'none') this.loadInfo();
	},
	
	// Begin Ajax request based off of the href of the clicked linked
	loadInfo: function() {
		var myAjax2 = new Ajax.Request(
        this.content,
        {method: 'post', parameters: "", onComplete: this.processInfo.bindAsEventListener(this)}
		);
		
	},
	
	// Display Ajax response
	processInfo: function(response){
		var info = "<div id='lbContent2'>" + response.responseText + "</div>";
		new Insertion.Before($('lbLoadMessage2'), info);
		$('lightbox2').className = "done2";
		this.actions();
	},
	
	// Search through new links within the lightbox, and attach click event
	actions: function(){
		var 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;};
		}

	},
	
	// Example of creating your own functionality once lightbox is initiated
	insert: function(e){
	   link = Event.element(e).parentNode;
	   Element.remove($('lbContent2'));
	 
	   var myAjax2 = new Ajax.Request(
			  link.href,
			  {method: 'post', parameters: "", onComplete: this.processInfo.bindAsEventListener(this)}
	   );
	 
	},
	
	// Deactivates the lightbox
	deactivate: function(){
		function deactivateLB() {
		  if($('lbContent2')) {
		    Element.remove($('lbContent2'));
		  }
		  $('overlay').style.display = 'none';
		  $('lightbox2').style.display = 'none';
		}
        deactivateLB();

		if (browser == "Internet Explorer"){
			this.setScroll(0,this.yPos);
			this.prepareIE("auto", "auto");
			this.hideSelects("visible");
		}
	}
}

/*-----------------------------------------------------------------------------------------------*/

// Onload, make all links that need to trigger a lightbox active
function initialize(){
	addLightboxMarkup();
	addLightboxMarkup2();
	lbox = document.getElementsByClassName('lbOn');
	for(i = 0; i < lbox.length; i++) {
		valid = new lightbox(lbox[i]);
	}
	lbox2 = document.getElementsByClassName('lbOn2');
	for(i = 0; i < lbox2.length; i++) {
		valid = new lightbox22(lbox2[i]);
	}
}

// Add in markup necessary to make this work. Basically two divs:
// Overlay holds the shadow
// Lightbox is the centered square that the content is put into.
function addLightboxMarkup() {
	var bod 				= document.getElementsByTagName('body')[0];
	var overlay 			= document.createElement('div');
	overlay.id		= 'overlay';
	overlay.className = 'lbAction';
	overlay.rel = 'deactivate';
	var lb					= document.createElement('div');
	lb.id				= 'lightbox';
	lb.className 	= 'loading';
	lb.style.backgroundColor = 'transparent';
	lb.style.border = 'none';
	lb.style.top = '50%';
	lb.style.left='58%';
	lb.style.margin = '-220px 0 0 -250px';
	lb.innerHTML	= '<div id="lbLoadMessage">' +
						  '<p>Loading</p>' +
						  '</div>';
    lb.style.top = "-171";
	bod.appendChild(overlay);
	bod.appendChild(lb);
}
function addLightboxMarkup2() {
	var bod2 				= document.getElementsByTagName('body')[0];
	var overlay2 			= document.createElement('div');
	overlay2.id		= 'overlay';
	overlay2.className = 'lbAction';
	overlay2.rel = 'deactivate';
	var lb2					= document.createElement('div');
	lb2.id				= 'lightbox2';
	lb2.className 	= 'loading';
	lb2.style.backgroundColor = 'transparent';
	lb2.style.border = 'none';
	lb2.style.width = '974px';
	lb2.style.marginLeft = '-500px';
	lb2.style.left = '50%';
	lb2.style.top = '15px';
	lb2.style.display = 'none';
	lb2.style.position = 'absolute';
	lb2.style.zIndex = '9999';
	lb2.style.border = '1px solid #fff';
	lb2.style.background = '#FDFCE9';
	lb2.style.textAlign = 'left';
	lb2.style.border = '2px solid #FFF';
	lb2.innerHTML	= '<div id="lbLoadMessage2">' +
						  '<p>Loading</p>' +
						  '</div>';
	bod2.appendChild(overlay2);
	bod2.appendChild(lb2);
}