function onblurField(field, defaultTxt) {
    if(field.value.match(/^\s+$/) || field.value == '') {
        field.className = 'disableColor';
        field.value = defaultTxt;
        return false;
    }
    return true;
}

function onfocusField(field, defaultTxt) {
    field.className = 'enableColor';
    if(field.value == defaultTxt) {
        field.value = '';
        return false;
    }
    return true;
}

function onSubmitForm(form) {
    var l = form.elements.length;
    for(var i=0;i<l;i++) {
        if(typeof(form.elements[i].value) == 'string' && 
           form.elements[i].className == 'disableColor'
        ) {
            form.elements[i].value = '';
        }
    }
    return true;
}

function submitForm(form) {
    onSubmitForm(form);
    form.submit();
    return false;
}