function NotEmpty(elem) {
    var str = elem.value;
    var re = /.+/;
    if(!str.match(re)) {
        alert("Please fill in the search field.");
        setTimeout("focusElement('" + elem.form.name + "', '" + elem.name + "')", 0);
        return false;
    } else {
        return true;
    }
}
function validateForm(form) {
        if (NotEmpty(form.searchterm)) {
                return true;
        }
        return false;
}