/* 3.1 */

var tb_initialised = false;
var tb_showing = false;
var tb_pathToImage = "images/loading.gif"
if (typeof tbImage != "undefined") {
    tb_pathToImage = tbImage;
};

/*!!!!!!!!!!!!!!!!! edit below this line at your own risk !!!!!!!!!!!!!!!!!!!!!!!*/

//on page load call tb_init
if (typeof jQuery != 'undefined') {
    $(document).ready(function(){
        tb_init('a.thickbox, area.thickbox, input.thickbox');//pass where to apply thickbox
        imgLoader = new Image();// preload image
        imgLoader.src = tb_pathToImage;
    });
};

//add thickbox to href & area elements that have a class of .thickbox
function tb_init(domChunk){
    tb_initialised = true;
    $(domChunk).click(function(){
        var t = this.title || this.name || null;
        var a = this.href || this.alt;
        var g = this.rel || false;
        tb_show(t,a,g);
        this.blur();
        return false;
    });
};

function tb_onshow() { };

function tb_onhide() { };

function tb_onbeforeshow() { };

function tb_onbeforehide() { };



function tb_show(caption, url, imageGroup) {
    try {
        return __tb_show(caption, url, imageGroup);
    } catch(e) { };
};

function __tb_show(caption, url, imageGroup) {
    tb_onbeforeshow();

    var params = [];
    if (typeof document.body.style.maxHeight === "undefined") {
        //if IE 6
        $("body","html").css({height: "100%", width: "100%"});
        $("html").css("overflow","hidden");
        if (document.getElementById("TB_HideSelect") === null) {
            //iframe to hide select elements in ie6
            $("body").append("<iframe id='TB_HideSelect'></iframe><div id='TB_overlay'></div><div id='TB_window'></div>");
            $("#TB_overlay").click(tb_remove);
        }
    } else {
        //all others
        if (document.getElementById("TB_overlay") === null) {
            $("body").append("<div id='TB_overlay'></div><div id='TB_window'></div>");
            $("#TB_overlay").click(tb_remove);
        };
    };

    if (tb_detectMacXFF()){
        //use png overlay so hide flash
        $("#TB_overlay").addClass("TB_overlayMacFFBGHack");
    } else {
        //use background and opacity
        $("#TB_overlay").addClass("TB_overlayBG");
    };

    if (caption === null) caption="";
    $("body").append("<div id='TB_load'><img src='"+imgLoader.src+"' /></div>");//add loader to the page
    $('#TB_load').show();//show loader

    var baseURL;
    if (url.indexOf("?")!==-1) {
        //ff there is a query string involved
        baseURL = url.substr(0, url.indexOf("?"));
    } else {
        baseURL = url;
    };

    var urlString = /\.jpg$|\.jpeg$|\.png$|\.gif$|\.bmp$/;
    var urlType = baseURL.toLowerCase().match(urlString);

    if (urlType == '.jpg' || urlType == '.jpeg' || urlType == '.png' || urlType == '.gif' || urlType == '.bmp'){
        //code to show images
        var TB_PrevCaption = "";
        var TB_PrevURL = "";
        var TB_PrevHTML = "";
        var TB_NextCaption = "";
        var TB_NextURL = "";
        var TB_NextHTML = "";
        var TB_imageCount = "";
        var 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] - 80;
            var y = pagesize[1] - 80;
            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 + 22;
            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+(TB_imageCount || TB_PrevHTML || TB_NextHTML ? "<div id='TB_secondLine'>" + TB_imageCount + TB_PrevHTML + TB_NextHTML + "</div>" : "")+"</div><div id='TB_closeWindow'><div id='TB_closeWindowButton' title='Close'>&nbsp;</div></div>");

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

            if (!(TB_PrevHTML === "")) {
                function goPrev(){
                    if ($(document).unbind("click",goPrev)){$(document).unbind("click",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
        var queryString = url.replace(/^[^\?]+\??/,'');
        var params = tb_parseQuery( queryString );

        TB_WIDTH = (params['width']*1) + 30 || 630; //defaults to 630 if no paramaters were added to URL
        TB_HEIGHT = (params['height']*1) + 40 || 440; //defaults to 440 if no paramaters were added to URL
        ajaxContentW = TB_WIDTH - 30;
        ajaxContentH = TB_HEIGHT - 45;

        if (url.indexOf('TB_iframe') != -1) { // either iframe or ajax window
            urlNoQuery = url.split('TB_');
            $("#TB_iframeContent").remove();
            if (params['modal'] != "true") { //iframe no modal
                $("#TB_window").append("<div id='TB_title'><div id='TB_ajaxWindowTitle'>"+caption+"</div><div id='TB_closeAjaxWindow'><div id='TB_closeWindowButton' title='Close'>&nbsp;</div></div></div><iframe frameborder='0' hspace='0' src='"+urlNoQuery[0]+"' id='TB_iframeContent' name='TB_iframeContent"+Math.round(Math.random()*1000)+"' onload='tb_showIframe()' style='width:"+(ajaxContentW + 29)+"px; height:"+(ajaxContentH + 10)+"px;' > </iframe>");
            } else {//iframe modal
                $("#TB_overlay").unbind();
                $("#TB_window").append("<iframe frameborder='0' hspace='0' src='"+urlNoQuery[0]+"' id='TB_iframeContent' name='TB_iframeContent"+Math.round(Math.random()*1000)+"' onload='tb_showIframe()' style='width:"+(ajaxContentW + 29)+"px; height:"+(ajaxContentH + 17)+"px;'> </iframe>");
            };
        } else {// not an iframe, ajax
            if ($("#TB_window").css("display") != "block"){
                if (params['modal'] != "true") { //ajax no modal
                    $("#TB_window").append("<div id='TB_title'><div id='TB_ajaxWindowTitle'>"+caption+"</div><div id='TB_closeAjaxWindow'><a href='#' id='TB_closeWindowButton'>close</a> or Esc Key</div></div><div id='TB_ajaxContent' style='width:"+ajaxContentW+"px; height:"+ajaxContentH+"px'></div>");
                } else {//ajax modal
                    $("#TB_overlay").unbind();
                    $("#TB_window").append("<div id='TB_ajaxContent' class='TB_modal' style='width:"+ajaxContentW+"px;height:"+ajaxContentH+"px;'></div>");
                };
            } else {//this means the window is already up, we are just loading new content via ajax
                $("#TB_ajaxContent")[0].style.width = ajaxContentW +"px";
                $("#TB_ajaxContent")[0].style.height = ajaxContentH +"px";
                $("#TB_ajaxContent")[0].scrollTop = 0;
                $("#TB_ajaxWindowTitle").html(caption);
            };
        };

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

        if (url.indexOf('TB_inline') != -1){
            $("#TB_ajaxContent").append($('#' + params['inlineId']).children());
            $("#TB_window").unload(function () {
                $('#' + params['inlineId']).append( $("#TB_ajaxContent").children() ); // move elements back when you're finished
            });
            tb_position();
            $("#TB_load").remove();
            $("#TB_window").css({display:"block"});
        } else if (url.indexOf('TB_iframe') != -1){
            tb_position();
            if ($.browser.safari) { //safari needs help because it will not fire iframe onload
                $("#TB_load").remove();
                $("#TB_window").css({display:"block"});
            };
        } else {
            $("#TB_ajaxContent").load(url += "&random=" + (new Date().getTime()),function() { //to do a post change this load method
                tb_position();
                $("#TB_load").remove();
                tb_init("#TB_ajaxContent a.thickbox");
                $("#TB_window").css({display:"block"});
            });
        };
    };
    tb_showing = true;
    tb_onshow();

    if (!params['modal']) {
        document.onkeyup = function(e) {
            if (e == null) { // ie
                keycode = event.keyCode;
            } else { // mozilla
                keycode = e.which;
            };
            if (keycode == 27){ // close
                tb_remove();
            };
        };
    };
};

//helper functions below
function tb_showIframe(){
    $("#TB_load").remove();
    $("#TB_window").css({display:"block"});
};

function tb_remove() {
    tb_onbeforehide();

    $("#TB_imageOff").unbind("click");
    $("#TB_closeWindowButton").unbind("click");
    $("#TB_window").fadeOut("fast",function(){$('#TB_window,#TB_overlay,#TB_HideSelect').trigger("unload").unbind().remove();});
    $("#TB_load").remove();
    if (typeof document.body.style.maxHeight == "undefined") {//if IE 6
        $("body","html").css({height: "auto", width: "auto"});
        $("html").css("overflow","");
    };
    document.onkeydown = "";
    document.onkeyup = "";
    tb_showing = false;
    tb_onhide();

    return false;
};

function tb_position() {
    $("#TB_window").css({marginLeft: '-' + parseInt((TB_WIDTH / 2),10) + 'px', width: TB_WIDTH + 'px'});
    if (!(jQuery.browser.msie && jQuery.browser.version <= 7)) { // take away IE6
        $("#TB_window").css({marginTop: '-' + parseInt((TB_HEIGHT / 2),10) + 'px'});
    };
};

function tb_parseQuery(query) {
    var Params = {};
    if (!query) return Params;
    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_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 = [w,h];
    return arrayPageSize;
};

function tb_detectMacXFF() {
    var userAgent = navigator.userAgent.toLowerCase();
    if (userAgent.indexOf('mac') != -1 && userAgent.indexOf('firefox')!=-1) {
        return true;
    };
};

