// zoomi - A zoom for images ~ Sean Catchpole - Version 0.9
(function($) {

    $.fn.zoomi = function() {        
        $(this).filter("img").each(function() {
            if (!this.z) {
                $(this).zoom1().mouseover(function() { $(this).zoom2().show(); });
                $(this.z).mouseout(function() { $(this).hide(); });
            }
        });
        return this;
    }

    $.fn.zoom1 = function() {        
        $(this).each(function() {
            var e = this;
            $(e).css({ 'position': 'relative', 'z-index': '8' }).after('<img class="' + e.className + '">');
            e.z = e.nextSibling;
            $(e.z).removeClass("zoomi").addClass("zoom2").attr("src", e.alt || e.src)
    .css({ 'position': 'absolute', 'z-index': '10' });
            $(e.z).hide();
        });
        return this;
    }

    $.fn.zoom2 = function() {        
        var s = [];
        this.each(function() {
            var e = this;
            if (!e.z) e = $(e).zoom1()[0]; s.push(e.z);
            if (!e.z.complete) return;
            if (!e.z.width) { $(e.z).show(); e.z.width = e.z.width; $(e.z).hide(); }
            $(e.z).css({ left: $(e).offsetLeft() - (e.z.width - e.scrollWidth) / 2 + 'px',
                top: $(e).offsetTop() - (e.z.height - e.scrollHeight) / 2 + 'px'
            });
        });
        return this.pushStack(s);
    }

    $.fn.offsetLeft = function() {        
        var e = this[0];
        if (!e.offsetParent) return e.offsetLeft;
        return e.offsetLeft + $(e.offsetParent).offsetLeft();
    }

    $.fn.offsetTop = function() {
        var e = this[0];
        if (!e.offsetParent) return e.offsetTop;
        return e.offsetTop + $(e.offsetParent).offsetTop();
    }

    $(function() { $('img.zoomi').zoomi(); });

})(jQuery);