// $Id: thickbox.js,v 1.2.4.1 2007/03/14 14:30:10 frjo Exp $

/*
* Thickbox 2.1 - One Box To Rule Them All.
* By Cody Lindley (http://www.codylindley.com)
* Copyright (c) 2006 cody lindley
* Dual licensed under the MIT (MIT-LICENSE.txt)
* and GPL (GPL-LICENSE.txt) licenses.
* Thickbox is built on top of the very light weight jQuery library.
*/

//on page load call TB_init
$(document).ready(TB_init);

//add thickbox to href elements that have a class of .thickbox
function TB_init() {
    $("a.thickbox").click(function() {
        var t = this.title || this.name || null;
        var g = this.rel || false;
        TB_show(t, this.href, g);
        this.blur();
        return false;
    });
}

function TB_show(caption, url, imageGroup) {//function called when the user clicks on a thickbox link

    try {
        if (document.getElementById("TB_HideSelect") == null) {
            $("body").append("<iframe id='TB_HideSelect'></iframe><div id='TB_overlay'></div><div id='TB_window'></div>");
            $("#TB_overlay").click(TB_remove);
        }

        if (caption == null) { caption = "" };

        $(window).scroll(TB_position);

        TB_overlaySize();

        $("body").append("<div id='TB_load'></div>");
        TB_load_position();



        if (url.indexOf("?") !== -1) { //If there is a query string involved
            var baseURL = url.substr(0, url.indexOf("?"));
        } else {
            var baseURL = url;
        }
        var urlString = /\.jpg|\.jpeg|\.png|\.gif|\.bmp/g;
        var urlType = baseURL.toLowerCase().match(urlString);

        if (urlType == '.jpg' || urlType == '.jpeg' || urlType == '.png' || urlType == '.gif' || urlType == '.bmp') {//code to show images

            TB_PrevCaption = "";
            TB_PrevURL = "";
            TB_PrevHTML = "";
            TB_NextCaption = "";
            TB_NextURL = "";
            TB_NextHTML = "";
            TB_imageCount = "";
            TB_FoundURL = false;
            if (imageGroup) {
                TB_TempArray = $("a[@rel=" + imageGroup + "]").get();
                for (TB_Counter = 0; ((TB_Counter < TB_TempArray.length) && (TB_NextHTML == "")); TB_Counter++) {
                    var urlTypeTemp = TB_TempArray[TB_Counter].href.toLowerCase().match(urlString);
                    if (!(TB_TempArray[TB_Counter].href == url)) {
                        if (TB_FoundURL) {
                            TB_NextCaption = TB_TempArray[TB_Counter].title;
                            TB_NextURL = TB_TempArray[TB_Counter].href;
                            TB_NextHTML = "<span id='TB_next'>&nbsp;&nbsp;<a href='#'>Next &gt;</a></span>";
                        } else {
                            TB_PrevCaption = TB_TempArray[TB_Counter].title;
                            TB_PrevURL = TB_TempArray[TB_Counter].href;
                            TB_PrevHTML = "<span id='TB_prev'>&nbsp;&nbsp;<a href='#'>&lt; Prev</a></span>";
                        }
                    } else {
                        TB_FoundURL = true;
                        TB_imageCount = "Image " + (TB_Counter + 1) + " of " + (TB_TempArray.length);
                    }
                }
            }

            imgPreloader = new Image();
            imgPreloader.onload = function() {
                imgPreloader.onload = null;

                // Resizing large images - orginal by Christian Montoya edited by me.
                var pagesize = TB_getPageSize();
                var x = pagesize[0] - 150;
                var y = pagesize[1] - 150;
                var imageWidth = imgPreloader.width;
                var imageHeight = imgPreloader.height;
                if (imageWidth > x) {
                    imageHeight = imageHeight * (x / imageWidth);
                    imageWidth = x;
                    if (imageHeight > y) {
                        imageWidth = imageWidth * (y / imageHeight);
                        imageHeight = y;
                    }
                } else if (imageHeight > y) {
                    imageWidth = imageWidth * (y / imageHeight);
                    imageHeight = y;
                    if (imageWidth > x) {
                        imageHeight = imageHeight * (x / imageWidth);
                        imageWidth = x;
                    }
                }
                // End Resizing

                TB_WIDTH = imageWidth + 30;
                TB_HEIGHT = imageHeight + 60;
                $("#TB_window").append("<a href='' id='TB_ImageOff' title='Close'><img id='TB_Image' src='" + url + "' width='" + imageWidth + "' height='" + imageHeight + "' alt='" + caption + "'/></a>" + "<div id='TB_caption'>" + caption + "<div id='TB_secondLine'>" + TB_imageCount + TB_PrevHTML + TB_NextHTML + "</div></div><div id='TB_closeWindow'><a href='#' id='TB_closeWindowButton' title='Close'>close</a></div>");

                $("#TB_closeWindowButton").click(TB_remove);

                if (!(TB_PrevHTML == "")) {
                    function goPrev() {
                        if ($(document).unclick(goPrev)) { $(document).unclick(goPrev) };
                        $("#TB_window").remove();
                        $("body").append("<div id='TB_window'></div>");
                        TB_show(TB_PrevCaption, TB_PrevURL, imageGroup);
                        return false;
                    }
                    $("#TB_prev").click(goPrev);
                }

                if (!(TB_NextHTML == "")) {
                    function goNext() {
                        $("#TB_window").remove();
                        $("body").append("<div id='TB_window'></div>");
                        TB_show(TB_NextCaption, TB_NextURL, imageGroup);
                        return false;
                    }
                    $("#TB_next").click(goNext);

                }

                document.onkeydown = function(e) {
                    if (e == null) { // ie
                        keycode = event.keyCode;
                    } else { // mozilla
                        keycode = e.which;
                    }
                    if (keycode == 27) { // close
                        TB_remove();
                    } else if (keycode == 190) { // display previous image
                        if (!(TB_NextHTML == "")) {
                            document.onkeydown = "";
                            goNext();
                        }
                    } else if (keycode == 188) { // display next image
                        if (!(TB_PrevHTML == "")) {
                            document.onkeydown = "";
                            goPrev();
                        }
                    }
                }

                TB_position();
                $("#TB_load").remove();
                $("#TB_ImageOff").click(TB_remove);
                $("#TB_window").css({ display: "block" }); //for safari using css instead of show
            }

            imgPreloader.src = url;
        } else {//code to show html pages

            var queryString = url.replace(/^[^\?]+\??/, '');
            var params = TB_parseQuery(queryString);

            TB_WIDTH = (params['width'] * 1) + 30;
            if (params['height'])
                TB_HEIGHT = (params['height'] * 1) + 40;
            else
                TB_HEIGHT = 40;

            ajaxContentW = TB_WIDTH - 30;
            ajaxContentH = TB_HEIGHT - 45;

            if (url.indexOf('TB_iframe') != -1) {
                urlNoQuery = url.split('TB_');
                $("#TB_window").append("<div id='TB_title'><div id='TB_ajaxWindowTitle'>" + caption + "</div><div id='TB_closeAjaxWindow'><a href='#' id='TB_closeWindowButton' title='Close'>close</a></div></div><iframe frameborder='0' hspace='0' src='" + urlNoQuery[0] + "' id='TB_iframeContent' name='TB_iframeContent' style='width:" + (ajaxContentW + 29) + "px;height:" + (ajaxContentH + 17) + "px;' onload='TB_showIframe()'> </iframe>");
            } else {
            $("#TB_window").append("<div id='TB_title'><div id='TB_ajaxWindowTitle'>" + caption + "</div><div id='TB_closeAjaxWindow'><a href='#' id='TB_closeWindowButton'>close</a></div></div><div id='TB_ajaxContent' style='width:" + ajaxContentW + "px;height:" + ajaxContentH + "px;'></div>");
                               
            }

            $("#TB_closeWindowButton").click(TB_remove);

            if (url.indexOf('TB_inline') != -1) {
                $("#TB_ajaxContent").html($('#' + params['inlineId']).html());
                TB_position();
                $("#TB_load").remove();
                $("#TB_window").css({ display: "block" });
            } else if (url.indexOf('TB_iframe') != -1) {
                TB_position();
                if (frames['TB_iframeContent'] == undefined) {//be nice to safari
                    $("#TB_load").remove();
                    $("#TB_window").css({ display: "block" });
                    $(document).keyup(function(e) { var key = e.keyCode; if (key == 27) { TB_remove() } });
                }
            } else {
                $("#TB_ajaxContent").load(url, function() {
                    TB_position();
                    $("#TB_load").remove();
                    $("#TB_window").css({ display: "block" });
                });
            }

        }

        $(window).resize(TB_position);

        document.onkeyup = function(e) {
            if (e == null) { // ie
                keycode = event.keyCode;
            } else { // mozilla
                keycode = e.which;
            }
            if (keycode == 27) { // close
                TB_remove();
            }
        }

    } catch (e) {
        alert(e);
    }
}

//helper functions below

function TB_showIframe() {
    $("#TB_load").remove();
    $("#TB_window").css({ display: "block" });
}

function TB_remove() {
    $("#TB_window").fadeOut("fast", function() { $('#TB_window,#TB_overlay,#TB_HideSelect').remove(); });
    $("#TB_load").remove();
    return false;
}

function TB_position() {
    var pagesize = TB_getPageSize();
    var arrayPageScroll = TB_getPageScrollTop();
    $("#TB_window").css({ width: TB_WIDTH + "px", left: (arrayPageScroll[0] + (pagesize[0] - TB_WIDTH) / 2) + "px", top: (arrayPageScroll[1] + (pagesize[1] - TB_HEIGHT) / 2) + "px" });
}

function TB_overlaySize() {
    if (window.innerHeight && window.scrollMaxY || window.innerWidth && window.scrollMaxX) {
        yScroll = window.innerHeight + window.scrollMaxY;
        xScroll = window.innerWidth + window.scrollMaxX;
    } else if (document.body.scrollHeight > document.body.offsetHeight || document.body.scrollWidth > document.body.offsetWidth) { // all but Explorer Mac
        yScroll = document.body.scrollHeight;
        xScroll = document.body.scrollWidth;
    } else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
        yScroll = document.body.offsetHeight;
        xScroll = document.body.offsetWidth;
    }
    $("#TB_overlay").css({ "height": yScroll + "px", "width": xScroll + "px" });
    $("#TB_HideSelect").css({ "height": yScroll + "px", "width": xScroll + "px" });
}

function TB_load_position() {
    var pagesize = TB_getPageSize();
    var arrayPageScroll = TB_getPageScrollTop();
    $("#TB_load")
  .css({ left: (arrayPageScroll[0] + (pagesize[0] - 100) / 2) + "px", top: (arrayPageScroll[1] + ((pagesize[1] - 100) / 2)) + "px" })
  .css({ display: "block" });
}

function TB_parseQuery(query) {
    var Params = new Object();
    if (!query) return Params; // return empty object
    var Pairs = query.split(/[;&]/);
    for (var i = 0; i < Pairs.length; i++) {
        var KeyVal = Pairs[i].split('=');
        if (!KeyVal || KeyVal.length != 2) continue;
        var key = unescape(KeyVal[0]);
        var val = unescape(KeyVal[1]);
        val = val.replace(/\+/g, ' ');
        Params[key] = val;
    }
    return Params;
}

function TB_getPageScrollTop() {
    var yScrolltop;
    var xScrollleft;
    if (self.pageYOffset || self.pageXOffset) {
        yScrolltop = self.pageYOffset;
        xScrollleft = self.pageXOffset;
    } else if (document.documentElement && document.documentElement.scrollTop || document.documentElement.scrollLeft) {  // Explorer 6 Strict
        yScrolltop = document.documentElement.scrollTop;
        xScrollleft = document.documentElement.scrollLeft;
    } else if (document.body) {// all other Explorers
        yScrolltop = document.body.scrollTop;
        xScrollleft = document.body.scrollLeft;
    }
    arrayPageScroll = new Array(xScrollleft, yScrolltop)
    return arrayPageScroll;
}

function TB_getPageSize() {
    var de = document.documentElement;
    var w = window.innerWidth || self.innerWidth || (de && de.clientWidth) || document.body.clientWidth;
    var h = window.innerHeight || self.innerHeight || (de && de.clientHeight) || document.body.clientHeight
    arrayPageSize = new Array(w, h)
    return arrayPageSize;
}