WebControl, server side events

[Nadav]

Hi,

I am new to WebControls, I am trying to implement a control that wil raise a
server side event resulting from a client side action, The broblem is that
the event shoudl be triggered as a result of a mouseup indication of a
certain <DIV> and not by an <INPUT type=submit> element in combination with
the IPostBackEventHandler interface....
How can this be achived?
Is it possible to get a server side indication as a result of client side
mouse up event?

Any pointers help or samples would be appriciated...