var preid = ""

function showTestimonial(id, window){
        if ($(window).style.visibility=="visible") {
            this.hideTestimonial(window);
        }
        else {
            $(window).innerHTML = '<p>' + $('text' + id).value + '</p>' + 
            '<p><b>' + $('author' + id).value + '</b></p>';
            $(window).style.visibility="visible";
        }
}

function hideTestimonial(window){
    $(window).innerHTML = '';
    $(window).style.visibility="hidden";
}