[jQuery] jqModal + validate + blockui plugins

Hi,
I am trying to implement validate plugin in jqModal. I tried validate
() method in onshow, onload method but it is not working. Can anyone
confirm whether it is supporting?
I tried blockui plugin to show "Please wait..." message on jqmodal
when form is submitted but its not working properly...Is this the
correct approach to show the message ?
Thanks,
Bhavin