jquery - Button Form Submit not working -

any ideas why wont submit form?(fyi dont want use input type='submit'), function call works.

<button  onclick='submitform()'>save</button>  function submitform() {     alert('run');     //do more things     $('form#myform').submit(); }

why don't go this:

<button>save</button>

and this:

$("button").click(function() { //change selector     alert('hello');     $("form").submit();//change selector });

And