jQuery.fn.fancyZoom = function(options){
  
    var options   = options || {};
    var directory = options && options.directory ? options.directory : 'images';
    var zooming   = false;

    if ($('#zoom').length == 0) {
        var ext = $.browser.msie ? 'gif' : 'png';
        var html = '<div id="zoom" style="display:none;"> \
                      <table id="zoom_table" style="border-collapse:collapse; width:100%; height:100%;"> \
                        <tbody> \
                          <tr> \
                            <td class="tl" style="background:url(' + directory + '/tl.' + ext + ') 0 0 no-repeat; width:20px; height:20px; overflow:hidden;" /> \
                            <td class="tm" style="background:url(' + directory + '/tm.' + ext + ') 0 0 repeat-x; height:20px; overflow:hidden;" /> \
                            <td class="tr" style="background:url(' + directory + '/tr.' + ext + ') 100% 0 no-repeat; width:20px; height:20px; overflow:hidden;" /> \
                          </tr> \
                          <tr> \
                            <td class="ml" style="background:url(' + directory + '/ml.' + ext + ') 0 0 repeat-y; width:20px; overflow:hidden;" /> \
                            <td class="mm" style="background:#fff; vertical-align:top; padding:10px;"> \
                              <div id="zoom_content" style=\"width:100%;height:400px;padding:5px;line-height:1.5em\"> \
                              </div> \
                            </td> \
                            <td class="mr" style="background:url(' + directory + '/mr.' + ext + ') 100% 0 repeat-y;  width:20px; overflow:hidden;" /> \
                          </tr> \
                          <tr> \
                            <td class="bl" style="background:url(' + directory + '/bl.' + ext + ') 0 100% no-repeat; width:20px; height:20px; overflow:hidden;" /> \
                            <td class="bm" style="background:url(' + directory + '/bm.' + ext + ') 0 100% repeat-x; height:20px; overflow:hidden;" /> \
                            <td class="br" style="background:url(' + directory + '/br.' + ext + ') 100% 100% no-repeat; width:20px; height:20px; overflow:hidden;" /> \
                          </tr> \
                        </tbody> \
                      </table> \
                      <a href="#" title="Close" id="zoom_close" style="position:absolute; top:0; left:0;"> \
                        <img src="' + directory + '/closebox.' + ext + '" alt="Close" style="border:none; margin:0; padding:0;" /> \
                      </a> \
                    </div>';
                    
        $('body').append(html);
        
        $('#area').click(function(e){if($(e.target).parents('#zoom:visible').length == 0) hide();});
        $(document).keyup(function(event){
            if (event.keyCode == 27 && $('#zoom:visible').length > 0) hide();
        });
        
        $('#zoom_close').click(hide);
    }
  
    var zoom          = $('#zoom');
    var zoom_table    = $('#zoom_table');
    var zoom_close    = $('#zoom_close');
    var zoom_content  = $('#zoom_content');
    var middle_row    = $('td.ml,td.mm,td.mr');

    this.each(function(i) {
        $($(this).attr('href')).hide();
        $(this).click(show);
    });

    return this;
  
  
    function show(e) {
        
        if (zooming) return false;
            zooming = true;

        var content_div = $($(this).attr('href'));
        
        if ($.browser.msie) {
            var auxstr = $(this).attr('href');
            var aux = auxstr.split("#");
            content_div = $('#'+aux[1]);;
        }

        var zoom_width  = options.width;
        var zoom_height = options.height;

        var width       = window.innerWidth || (window.document.documentElement.clientWidth || window.document.body.clientWidth);
        var height      = window.innerHeight || (window.document.documentElement.clientHeight || window.document.body.clientHeight);
        var x           = window.pageXOffset || (window.document.documentElement.scrollLeft || window.document.body.scrollLeft);
        var y           = window.pageYOffset || (window.document.documentElement.scrollTop || window.document.body.scrollTop);
        var window_size = {'width':width, 'height':height, 'x':x, 'y':y}

        var width       = (zoom_width || content_div.width()) + 60;
        var height      = (zoom_height || content_div.height()) + 60;
        var d           = window_size;

        // ensure that newTop is at least 0 so it doesn't hide close button
        var newTop      = Math.max((d.height/2) - (height/2) + y, 0);
        var newLeft     = (d.width/2) - (width/2);
        var curTop      = e.pageY;
        var curLeft     = e.pageX;
            
        zoom_close.attr('curTop', curTop);
        zoom_close.attr('curLeft', curLeft);
        zoom_close.attr('scaleImg', options.scaleImg ? 'true' : 'false');
            
        $('#zoom').hide().css({
            position  : 'absolute',
            top       : curTop + 'px',
            left      : curLeft + 'px',
            width     : '1px',
            height    : '1px'
        });

        fixBackgroundsForIE();
        zoom_close.hide();

        if (options.closeOnClick) {
            $('#zoom').click(hide);
        }

        $('#zoom').animate({
            top     : curTop + 'px',
            left    : newLeft + 'px',
            opacity : "show",
            width   : '600px',
            height  : '420px' 
        }, 500, null, function() {
            if (options.scaleImg != true) {
                zoom_content.html(content_div.html());
            }
            $('#zoom #zoom_content').css('overflow','auto');
            
            if($.browser.msie && $.browser.version < 8) {
                $('#zoom #zoom_content').css('overflow','visible');
                $('#zoom #zoom_content').css('overflow-y','auto');
                $('#zoom #zoom_content').css('overflow-x','hidden');
                $('#zoom #zoom_content').css('padding-bottom','15px');
                $('#zoom #zoom_content').css('position','relative');
            }
            
            $('#zoom #zoom_content .notiGal a').lightBox({containerResizeSpeed: 350,txtImage: 'Imagen'});
            $('#zoom #zoom_content .notiGalP a').lightBox({containerResizeSpeed: 350,txtImage: 'Imagen'});
            $('#zoom #zoom_content .notiGal').jcarousel({scroll:1});

            
            unfixBackgroundsForIE();
            zoom_close.show();
            zooming = false;
        })
        return false;
    }
  

    function hide() {
        
        if (zooming) return false;
        
        zooming = true;
        $('#zoom').unbind('click');
        fixBackgroundsForIE();
        if (zoom_close.attr('scaleImg') != 'true') {
            zoom_content.html('');
        }
        zoom_close.hide();
        $('#zoom').animate({
            top     : zoom_close.attr('curTop') + 'px',
            left    : zoom_close.attr('curLeft') + 'px',
            opacity : "hide",
            width   : '1px',
            height  : '1px'
        }, 500, null, function() {
            if (zoom_close.attr('scaleImg') == 'true') {
                zoom_content.html('');
            }
            unfixBackgroundsForIE();
            $('#zoom #zoom_content').css('overflow','visible');
            zooming = false;
        });
        return false;
    }

    function switchBackgroundImagesTo(to) {
        $('#zoom_table td').each(function(i) {
            var bg = $(this).css('background-image').replace(/\.(png|gif|none)\"\)$/, '.' + to + '")');
            $(this).css('background-image', bg);
        });
        var close_img = zoom_close.children('img');
        var new_img = close_img.attr('src').replace(/\.(png|gif|none)$/, '.' + to);
        close_img.attr('src', new_img);
    }

    function fixBackgroundsForIE() {
        if ($.browser.msie && parseFloat($.browser.version) >= 7) {
            switchBackgroundImagesTo('gif'); 
        }
    }

    function unfixBackgroundsForIE() {
        if ($.browser.msie && $.browser.version >= 7) {
            switchBackgroundImagesTo('png'); 
        }
    }
}