Q:

How can I launch an email from a website? 

I am developing a seat plan website.   When a desk is clicked I get the info of the person sitting at the desk fine (name,phone,email).   Now I want to have a email button beside the persons email address (similar to what lync 2011 had if anyone has seen it).   On click off the button I would like to launch a new email in outlook and have the persons email address in the To field. 
My solution is being developed in Visual Studio 2010, and uses C#, ASP, XML and Javascript/JQuery/JSON. 
Does anyone have any advice on how to achieve this - any links or sample source would be great.  

A:

mailto:email@address.com
Put that in a link.  and viola you are good ^_^
Example:
<a href="mailto:harry@hogwarts.edu">Email Harry</a>

See example here with a button (as described in comments below): 
 http://jsfiddle.net/maniator/DqYKw

