How can one enable front-end validation based on the xml in validation.xml?

Struts Questions and Answers

(Continued from previous question...)

88. How can one enable front-end validation based on the xml in validation.xml?

The <html:javascript> tag allows front-end validation based on the xml in validation.xml.
For example the code:

generates the client side JavaScript for the form "logonForm" as defined in the validation.xml file.
The <html:javascript> when added in the JSP file generates the client side validation script.

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• How can one enable front-end validation based on the xml in validation.xml?