(function($) {
    $.fn.CanvasHack = function() {
        var canvases = this.find('canvas').filter(function() {
            return $(this).css('position') == 'absolute';
        });

        canvases.wrap(function() {
            var canvas = $(this);
            var div = $('<div />').css({
                position: 'absolute',
                top: canvas.css('top'),
                left: canvas.css('left')
            });
            canvas.css({
                top: '0',
                left: '0'
            });
            return div;
        });

        return this;
    };
})(jQuery);