jQuery after onclick

I've a form with different field, a validation summary and a button Sign up! When I click on Sign up, if a field is empty, it active validat开发者_Go百科ion summary and until here there's no problem.

So the problem is that I would want active a jQuery script after it was clicked Sign up button and it appeared validation summary.

I try with

$(this).load(function()

but in effect it occur when the page is load and not after the button is clicked. I try also use button's onclick ,but I have to use script after onclick and not while.

I used Validation group for all field of form, also button and for this reason it seems doesn't postback!

Um your question is a bit unclear to me but wouldn't this work ?

$("#sign_btn").click(function(){
 alert("I was clicked");
});

sign_btn is the ID of the button.