Change required status of a text field
By default, Validation Text Field widgets require user input when published on a web page. You can, however, make the completion of text fields optional for the user.
To change the required status of a text field,
add the isRequired property to the constructor
and set its value to false, as follows:
<script type="text/javascript">
var tf1 = new Spry.Widget.ValidationTextField("textfieldwidget1", "none", {isRequired:false});
</script>
Note: In the preceding example, the second parameter is set
to "none", but it could easily be set to any of
the available validation types (for example, "phone" or "credit_card").
See Specify
a validation type and format.