I recently downloaded a template for a client and the contact form doesnt come with any PHP or JavaScript to make it actually work... The HTML code is as follows:

<div class="col span_2_of_3">
<div class="contact-form">
<h3>Contact Us</h3>
<form>
<div>
<span><label>NAME</label></span>
<span><input type="text" value=""></span>
</div>
<div>
<span><label>E-MAIL</label></span>
<span><input type="text" value=""></span>
</div>
<div>
<span><label>MOBILE.NO</label></span>
<span><input type="text" value=""></span>
</div>
<div>
<span><label>SUBJECT</label></span>
<span><textarea> </textarea></span>
</div>
<div>
<span><input type="submit" value="Submit"></span>
</div>
</form>
</div>
</div>

Can somebody help me write the code to make this form actually work to send the filled out information to their email address?

Any and all help is much appreciated!