HTML Form validation with js & php processing

I searched for a simple script which validates a html-form and if everything is alright submit the form to a php script ... i didn't really find something so here is a simple one of mine

1st - create your form with the js-validation

 onsubmit="return k_checkForm(this);" 
 method="post">
Name: 
Number: 

2nd - put a validation js somewhere in the html file (preferable in the head section)

3nd - php-script (server.php) here you can access the variables like this

echo $_POST["name"]; 
echo $_POST["phone"];