i've created page for member registration purpose
and there are some textbox,select box for user to input their username
password,email,interest etc and a captcha to avoid bot registration
i try to validate all the user input without need to reload or refresh the
page so i'm using javascript to check whether ie. the user
input correct password,valid email and so on
so far there's no problem till i try to validate the captcha, because i got the captcha
script from web and it use php to validate the keywords, so the page need to reload/refresh
i had try to modify the script using javascript to validate between user key and captcha but
no result
i've plan to validate the captcha using javascript and if a user failed
to insert the correct keyword from the captcha picture, the captcha picture
will be changed with another picture (without reload the page) and let the user to reinput the keyword
for that new captcha until 3 times effort and then the page will be refreshed
anyone can help me?
thanks for your advance