trigger jquery validate() on button click

[tysely]

i have from and i am using jquery validate jquery.validate.pack.jsits work fine when i press submit button, i just add following code \[code\] $(document).ready(function(){ $("#contactform").validate(); });\[/code\]and class="validate" for text box but i want to call php file with Ajax after validate is complete.like $.ajax({ type: "POST", url: "email_feedback.php",etchow can i do this ?Thanks