button with no postback?

Question

Well i have a asp.net page where i have a button that im using to execute a JavaScript... but after the JavaScript has run the page reloads(postback) how can i avoid that?

Answer 1

if you don't need a post back you should use an HTML button.

in that case you don't need override the behavior to avoid the post back and it's laighter to load (it doesn't need to be worked by the server to render back the HTML)