/*
Created By: Chris Campbell
Website: http://particletree.com
Date: 2/1/2006

Inspired by the lightbox implementation found at http://www.huddletogether.com/projects/lightbox/
*/

/*-------------------------------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.loaded_content = false;
		this.content = ctrl.href;
		this.overlay_event = null;
                this.org_body = 0;
		Event.observe(ctrl, 'click', this.activate.bindAsEventListener(this), false);
                this.overlay_event = Event.observe($('overlay'),'click',this.deactivate.bind(this));
		ctrl.onclick = function(){return false;};
	},
	
	// Turn everything on - mainly the IE fixes
	activate: function(){
		this.getScroll();
		if (browser == 'Internet Explorer'){
			//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){
                //$('lightbox').style.height = height + 'px';
                //height += 100;


               // if (this.org_body == 0)
               // {
               //  this.org_body = $('body').getHeight();
               // }
              // var tmp_h = height;
               //tmp_h = tmp_h.toString();

               if (parseFloat(height) === height)
               {
               //alert(height);
		bod = document.getElementsByTagName('body')[0];
		bod.style.height = (height+50) + 'px';
	//	bod.style.overflow = overflow;


		htm = document.getElementsByTagName('html')[0];
		//htm.style.height = height + 'px';
	//	htm.style.overflow = overflow;
	       }
	},
	
	// In IE, select elements hover on top of the lightbox
	hideSelects: function(visibility){
		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;
		if (display == 'block')
		{
                $('lightbox').style.display = 'none';
		$('lightbox').style.display = display;
                //$('lightbox').style.backgroundColor = '#ffffff';
                //new Effect.Appear($('lightbox'),{duration:1.0, afterFinish:function(){alert(1);}});
                // $('lightbox').show();


                } else {
		//$('lightbox').style.display = display;
                }

		if(display != 'none') this.loadInfo();
	},
	
	// Begin Ajax request based off of the href of the clicked linked
	loadInfo: function() {
          if (!this.loaded_content)
          {
            this.loaded_content = true;
		var myAjax = new Ajax.Request(
        this.content,
        {method: 'post', parameters: "", onComplete: this.processInfo.bindAsEventListener(this)}
		);
          } else {
                $('lightbox').className = "done";
		setTimeout(this.actions.bind(this),300);
          }
	},

	// Display Ajax response
	processInfo: function(response){
          //
		info = "<div id='lbContent' style='display:none;height:1450px;'>" + response.responseText + "</div>";
		new Insertion.Before($('lbLoadMessage'), info)
		//$('lightbox').style.display='none';
                $('lightbox').className = "done";
		setTimeout(this.actions.bind(this),300);

	},

	// Search through new links within the lightbox, and attach click event
	actions: function(){

                //alert($('form_box').getWidth() + ':' + $('lightbox').getHeight());
                var tmp_height = 1540; //$('form_box').getHeight();
                //tmp_height += 100;

                $('lbContent').style.display = 'none';
                new Effect.Appear('lbContent',{duration:0.5});

                $('overlay').style.height= (tmp_height+100)+'px';
                $('lightbox').style.width = '625px';
                $('lightbox').style.height = (tmp_height+30)+'px';
		this.prepareIE(tmp_height, "hidden");


                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',evalScripts:true, parameters: "", onComplete: this.processInfo.bindAsEventListener(this)}
	   );
	 
	},
	
	// Example of creating your own functionality once lightbox is initiated
	deactivate: function(){
          if ($('lbContent'))
          {
       	        $('postError').hide();
      	        $('postSuccess').hide();

                new Effect.Fade('lbContent',{duration:0.2,afterFinish:function()
                       {
                        $('overlay').style.display='none';
                       }});
       	        //new Effect.Fade('overlay',{duration:0.1});

                //Element.remove($('lbContent'));

		if (browser == "Internet Explorer"){

                 this.hideSelects("visible");
		}
		 this.prepareIE(this.org_body, "auto");
                 this.setScroll(0,this.yPos);

          }
		$('lightbox').style.display = 'none';
                $('overlay').style.height= '500px';
                $('lightbox').style.height = '500px';
                //this.displayLightbox("none");
	}
}

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

// Onload, make all links that need to trigger a lightbox active
var init_markup = false;
var valid = null;
function initialize(){
        if (!init_markup)
        {
	 addLightboxMarkup();
         init_markup = true;
        }
	lbox = document.getElementsByClassName('lbOn');
	for(i = 0; i < lbox.length; i++) {
		valid = new lightbox(lbox[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() {
	bod 				= document.getElementsByTagName('body')[0];
	overlay 			= document.createElement('div');
	overlay.id		= 'overlay';
	lb					= document.createElement('div');
	lb.id				= 'lightbox';
	lb.className 	= 'loading';
	lb.innerHTML	= '<div id="lbLoadMessage">' +
						  '<p><img src="spinner.gif"> Loading</p>' +
						  '</div>';
        lb.innerHTML += '<div id="postError" style="display:none;"><br /><br /><div class="error_note">There was an error detected while submitting your information. Please correct the following error(s) and try again.<br /></div><br /><br /><div id="postErrorMessage"></div><br /><br /><div id="postErrorButtons"><input type="button" id="postErrorCancel" value="CANCEL"><input type="button" id="postErrorBack" value="GO BACK"></div><br /><br /></div>';
        lb.innerHTML += '<div id="postSuccess" style="display:none;">Thank you! Your message has been sent and we will get back to you as soon as possible.<div id="postSuccessButtons"><input type="button" id="postSuccessClose" value="CLOSE"></div></div>';
	bod.appendChild(overlay);
	bod.appendChild(lb);
}
var addCSS = function (url)
{
  var headID = document.getElementsByTagName("head")[0];
  var cssNode = document.createElement('link');
  cssNode.type = 'text/css';
  cssNode.rel = 'stylesheet';
  cssNode.href = url;
  cssNode.media = 'screen';
  headID.appendChild(cssNode);
}