/*
 * Thickbox 2.1 - 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='/images/loading_anim.gif' /></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='#'>下一张 &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; 上一张</a></span>";
                            }
                        } else {
                            TB_FoundURL = true;
                            //TB_imageCount = "第 " + (TB_Counter + 1) +" 张,共 "+ (TB_TempArray.length)+"张";                                            
                        }
                }
            }
            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'>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>");
                    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;
            TB_HEIGHT = (params['height']*1) + 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_imageOff").unclick();
    $("#TB_overlay").unclick();
    $("#TB_closeWindowButton").unclick();
    $("#TB_window").fadeOut("fast",function(){$('#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;
        var deff = document.documentElement;
        var wff = (deff&&deff.clientWidth) || document.body.clientWidth || window.innerWidth || self.innerWidth;
        var hff = (deff&&deff.clientHeight) || document.body.clientHeight || window.innerHeight || self.innerHeight;
        xScroll -= (window.innerWidth - wff);
        yScroll -= (window.innerHeight - hff);
    } 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;
}