$(document).ready(function() {
    /* menu */
    $(".opener").click(function() {
        submenuId = '#' + (this.id + '').replace('open_', '');
        $(".submenu:not(" + submenuId + ")").slideUp();
        $(submenuId).slideDown();
    });
    /* animation links */
    $(".animationLink").hover(function() {
        this.src = this.src.replace(/_RollOver/, '');
        this.src = this.src.replace('.png', '_RollOver.png');
    }, function() {
        this.src = this.src.replace(/_RollOver/, '');
    });
});