how to write on click and onclientclik in in input button

Hi,
in my application ,i have to change asp controls with html control due to jquery.
my problem is i want to add onclick and onclient click in html button
like this <input type="button" runat ="server" onclick="someevent();" onclientclick="anotherevent"/>
how to solve this .because html button doesn't contain onclientclick.
in onclick event i wrote query for save. i want to add javascript validation on this button.
how to solve this.

Regards

Baiju