JavaScript to give you the ability to put default text in a text field, then remove it when a user clicks the field, and put that text back in if they leave the field empty.

TextFieldFocus.js

function Focus(TextboxName,TheValue){
  if (document.getElementById(TextboxName).value == TheValue){
    document.getElementById(TextboxName).value = "";
} }

function Blur(TextboxName,TheValue){
  if (document.getElementById(TextboxName).value == ""){
    document.getElementById(TextboxName).value = TheValue;
} }

// usage in X/D/HTML
<input type="text" value="First Name:" name="First" id="First" onfocus="Focus('First','First Name:')" onblur="Blur('First','First Name:')" />