javascript - how to Validate captcha before submit a form in joomla -


i have installed 5 captcha plugin in joomla site , set 1 captcha out of 5 in com_users configuration in backend of joomla.

so want validate captcha client browser in registration form. 

client side validation every captcha client browser

if using google's recaptcha default plugin joomla!, validation done off site , pass or fail "flag" returned form...no further action needed you.


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