query form validation and mail

Question

Hello Friends
please help me out.
this is a very small problem but make big headache for me.
i have a query form. so for validation i m using JavaScript. but its not working,
please find the attachment and please please sort the my problem. why its not working and what is the solution.
and one more thing i want to send this query form as mail to on info id
(this is my website form so i have my server name)
so what i need code for query mail .please help me for this too
Thanks in advance