try this code:

//OPTIONS
$sendTo = 'email@ofadmin.com'; //address to end form contants to
$subject = 'Enter you subject here'; //subject of the e-mail

//mail headers
$MAIL_HEADER =...

you shoud seek out a tutorial on writting PHP classes. this will help you a lot in the future. it's good practice in my opinion to write it once and reuse it forever. building up a library of classes...