function clearInput(obj,txt) {
    if (obj.value == txt) {
        obj.value = "";
    };
}

function addInput(obj,txt) {
    if (obj.value == "") {
        obj.value = txt;
    };
}

function submitenter(myfield,e){
    var keycode;
    if (window.event) keycode = window.event.keyCode;
    else if (e) keycode = e.which;
    else return true;

    if (keycode == 13){
       myfield.form.submit();
       return false;
       } else {
       return true;
       }
}