function ClearForm() {
    for (i = 0; i < document.forms[0].elements.length; i++) {
        doc = document.forms[0].elements[i];
        switch (doc.type) {
            case "text":
                doc.value = "";
                break;
            case "textarea":
                doc.value = "";
                break;
            default:
                break;
        }
    }
}