Struts 1.3.8 and URL Validation

[pushkar . p]

Hi,

I'm using Struts version 1.3.8 and I intend to use URL validation for a
field using the  validation.xml file. But, when I declare the field in
validation.xml, it does not validate the field to check whether the URL is a
valid one, meaning that it takes any input that I give in that textbox.
Here's the entry from my validation.xml file:

<field property="vendorURL" depends="url">
        <arg key="form.vendor.VendorURL" position="0"/>
</field>

Also, other validations like "required", "email", "maxlength"..etc are
working fine on this form.

Is there anything else that I need to do for having client-side URL
validation besides declaring in validation.xml?

Thanks.

-Pushkar.