/*
 * Thickbox 2.0 - One Box To Rule Them All.
 * By Cody Lindley (http://www.codylindley.com)
 * Copyright (c) 2006 cody lindley
 * Licensed under the MIT License:
 *   http://www.opensource.org/licenses/mit-license.php
 * 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'><img src='/resource/images/loadingAnimation.gif' /></div>");
        TB_load_position();

        var urlString = /\.jpg|\.jpeg|\.png|\.gif|\.html|\.htm|\.php|\.cfm|\.asp|\.aspx|\.jsp|\.jst|\.rb|\.txt|\.bmp/g;
        var urlType = url.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='#'>下一页 &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; 上一页</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 or Escape Button'>关闭</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>");
                        $(document).unkeyup();
                        TB_show(TB_PrevCaption, TB_PrevURL, imageGroup);
                        return false;
                    }

                    $("#TB_prev").click(goPrev);

                    $(document).keyup(function(e){
                        var key = e.keyCode;
                        if (key == 37) {
                            goPrev()
                        }
                    });
                }



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

                    $("#TB_next").click(goNext);

                    $(document).keyup(function(e){
                        var key = e.keyCode;
                        if (key == 39) {
                            goNext()
                        }
                    });
                }

                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;
        }

        if (urlType == '.htm' || urlType == '.html' || urlType == '.php' || urlType == '.asp' || urlType == '.aspx' || urlType == '.jsp' || urlType == '.jst' || urlType == '.rb' || urlType == '.txt' || urlType == '.cfm' || (url.indexOf('TB_inline') != -1) || (url.indexOf('TB_iframe') != -1)) {//code to show html pages
            var queryString = url.replace(/^[^\?]+\??/, '');
            var params = TB_parseQuery(queryString);

            TB_WIDTH = (params['width'] * 1) + 30;
            TB_HEIGHT = (params['height'] * 1) + 40;
            ajaxContentW = TB_WIDTH - 30;
            ajaxContentH = TB_HEIGHT - 45;

            if (url.indexOf('TB_iframe') != -1) {
                urlNoQuery = url.substr(0, TB_strpos(url, "?"));
                $("#TB_window").append("<div id='TB_title'><div id='TB_ajaxWindowTitle'>" + caption + "</div><div id='TB_closeAjaxWindow'><a href='#' id='TB_closeWindowButton'>关闭</a></div></div><iframe src='" + urlNoQuery + "' id='TB_iframeContent' style='width:" + (ajaxContentW + 30) + "px;height:" + (ajaxContentH + 18) + "px;'></iframe>");
            }
            else {
                $("#TB_window").append("<div id='TB_title'><div id='TB_ajaxWindowTitle'>" + caption + "</div><div id='TB_closeAjaxWindow'><a href='#' id='TB_closeWindowButton'>关闭</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();
                    $("#TB_load").remove();
                    $("#TB_window").css({
                        display: "block"
                    });
                }
                else {
                    $("#TB_ajaxContent").load(url, function(){
                        TB_position();
                        $("#TB_load").remove();
                        $("#TB_window").css({
                            display: "block"
                        });
                    });
                }

        }

        $(window).resize(TB_position);

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

//helper functions below

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

function TB_position(){
    var pagesize = TB_getPageSize();
    var arrayPageScroll = TB_getPageScrollTop();

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

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

function TB_load_position(){
    var pagesize = TB_getPageSize();
    var arrayPageScroll = TB_getPageScrollTop();

    $("#TB_load").css({
        left: ((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;
    if (self.pageYOffset) {
        yScrolltop = self.pageYOffset;
    }
    else
        if (document.documentElement && document.documentElement.scrollTop) { // Explorer 6 Strict
            yScrolltop = document.documentElement.scrollTop;
        }
        else
            if (document.body) {// all other Explorers
                yScrolltop = document.body.scrollTop;
            }
    arrayPageScroll = new Array('', 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;
}

function TB_strpos(str, ch){
    for (var i = 0; i < str.length; i++)
        if (str.substring(i, i + 1) == ch)
            return i;
    return -1;
}