function SlideSliderHeight(sender) {

    var parent = sender.parentNode;
    var contentNode = null;
    for (var i = 0; i < parent.childNodes.length; i++) {
        if (parent.childNodes[i] != sender) {
            contentNode = parent.childNodes[i];
            break;
        }
    }
    switch (contentNode.className) {
        case "showContent":
            contentNode.className = "hideContent";
            break;
        case "hideContent":
            contentNode.className = "showContent";
            break;
    }
}