jQuery.fn.fancyZoom = function(options){

  var options   = options || {};
  var directory = options && options.directory ? options.directory : 'images';
  var title = options && options.title ? options.title : 'Close';
  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"> \
                          </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="'+title+'" id="zoom_close" style="position:absolute; top:0; left:0;"> \
                    <img src="' + directory + '/closebox.' + ext + '" alt="'+title+'" style="border:none; margin:0; padding:0;" /> \
                  </a> \
                </div>';

    $('body').append(html);

    $('html').click(function(e){if($(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'));
                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) + 80;
                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);
                }

                if (options.scaleImg) {
                  zoom_content.html(content_div.html());
                  $('#zoom_content img').css('width', '100%');
                } else {
                  zoom_content.html('');
                }

if ($.browser.msie && parseFloat($.browser.version) < 7)
{

                $('#zoom').animate({
                top     : newTop + 'px',
                left    : newLeft + 'px',
                opacity : "show",
                width   : width,
                height  : height
                }, 5, null, function() {
                   if (options.scaleImg != true) {
                        zoom_content.html(content_div.html());
                    }
                        unfixBackgroundsForIE();
                        zoom_close.show();
                        zooming = false;
                    })

}
else
{
                $('#zoom').animate({
                top     : newTop + 'px',
                left    : newLeft + 'px',
                opacity : "show",
                width   : width,
                height  : height
                }, 500, null, function() {
                   if (options.scaleImg != true) {
                        zoom_content.html(content_div.html());
                    }
                        unfixBackgroundsForIE();
                        zoom_close.show();
                        zooming = false;
                    })
}

                if ($.browser.msie && parseFloat($.browser.version) < 7) { $("#addToCartBlock").css('visibility', 'hidden'); }
                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();

if ($.browser.msie && parseFloat($.browser.version) < 7)
{

                $('#zoom').animate({
                      top     : zoom_close.attr('curTop') + 'px',
                      left    : zoom_close.attr('curLeft') + 'px',
                      opacity : "hide",
                      width   : '1px',
                      height  : '1px'
                      }, 5, null, function() {
                        if (zoom_close.attr('scaleImg') == 'true') { zoom_content.html('');}
                      unfixBackgroundsForIE();
                      zooming = false;
                });

}
else
{
                $('#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();
                      zooming = false;
                });
}

    $("#addToCartBlock").css('visibility', 'visible');
    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');
    }
        }
}