function showHide(elements, show) {
    var display, elem, hidden,
    values = [],
    index = 0,
    length = elements.length;
    for (; index < length; index++) {
        elem = elements[index];
        if (!elem.style) {
            continue;
        }

        values[index] = jQuery._data(elem, "olddisplay");
        display = elem.style.display;
        if (show) {
            // Reset the inline display of this element to learn if it is
            // being hidden by cascaded rules or not
            if (!values[index] && display === "none") {
                elem.style.display = "";
            }

            // Set elements which have been overridden with display: none
            // in a stylesheet to whatever the default browser style is
            // for such an element
            if (elem.style.display === "" && isHidden(elem)) {
                values[index] = jQuery._data(elem, "olddisplay", css_defaultDisplay(elem.nodeName));
            }
            elem.setAttribute("aria-hidden", "false");
        } else {

            if (!values[index]) {
                hidden = isHidden(elem);

                if (display && display !== "none" || !hidden) {
                    jQuery._data(elem, "olddisplay", hidden ? display : jQuery.css(elem, "display"));
                }
            }
            elem.setAttribute("aria-hidden", "true");
        }
    }

    // Set the display of most of the elements in a second loop
    // to avoid the constant reflow
    for (index = 0; index < length; index++) {
        elem = elements[index];
        if (!elem.style) {
            continue;
        }
        if (!show || elem.style.display === "none" || elem.style.display === "") {
            elem.style.display = show ? values[index] || "" : "none";
        }
    }

    return elements;
}