/*
    Lightbox JS: Fullsize Image Overlays
    by Lokesh Dhakar - http://www.huddletogether.com
 
    For more information on this script, visit:
    http://huddletogether.com/projects/lightbox/
 
    Licensed under the Creative Commons Attribution 2.5 License - http://creativecommons.org/licenses/by/2.5/
    (basically, do anything you want, just leave my name and link)
 
    Table of Contents
    -----------------
    Configuration
 
    Functions
    - getPageScroll()
    - getPageSize()
    - pause()
    - getKey()
    - listenKey()
    - showLightbox()
    - hideLightbox()
    - initLightbox()
    - addLoadEvent()
 
    Function Calls
    - addLoadEvent(initLightbox)
 
*/
 
 
 
//
// Configuration
//
 
// If you would like to use a custom loading image or close button reference them in the next two lines.
var loadingImage = 'loading.gif';
var closeButton = 'close.gif';
 
 
 
 
 
//
// getPageScroll()
// Returns array with x,y page scroll values.
// Core code from - quirksmode.org
//
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;
}
 
 
 
//
// getPageSize()
// Returns array with page width, height and window width, height
// Core code from - quirksmode.org
// Edit for Firefox by pHaez
//
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;
    }
 
    // for small pages with total height less then height of the viewport
    if(yScroll < windowHeight){
        pageHeight = windowHeight;
    } else {
        pageHeight = yScroll;
    }
 
    // for small pages with total width less then width of the viewport
    if(xScroll < windowWidth){
        pageWidth = windowWidth;
    } else {
        pageWidth = xScroll;
    }
 
 
    arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight)
    return arrayPageSize;
}
 
 
//
// pause(numberMillis)
// Pauses code execution for specified time. Uses busy code, not good.
// Code from http://www.faqts.com/knowledge_base/view.phtml/aid/1602
//
function pause(numberMillis) {
    var now = new Date();
    var exitTime = now.getTime() + numberMillis;
    while (true) {
        now = new Date();
        if (now.getTime() > exitTime)
            return;
    }
}
 
//
// getKey(key)
// Gets keycode. If 'x' is pressed then it hides the lightbox.
//
 
function getKey(e){
    if (e == null) { // ie
        keycode = event.keyCode;
    } else { // mozilla
        keycode = e.which;
    }
    key = String.fromCharCode(keycode).toLowerCase();
 
    if(key == 'x'){ hideLightbox(); }
}
 
 
//
// listenKey()
//
function listenKey () {    document.onkeypress = getKey; }
 
 
//
// showLightbox()
// Preloads images