How To Determine Which Submit Button Was Pressed, Form onSubmit Event, Without jQuery [duplicate]

Question

I have a form with two submit buttons and some code:

HTML:

<input type="submit" name="save" value="Save" /> <input type="submit" name="saveAndAdd" value="Save and add another" /> 

JavaScript:

form.onSubmit = function(evnt) {     // Do some asyncrhnous stuff, that will later on submit the form     return false; } 

Of course the two submit buttons accomplish different things. Is there a way to find out in onSubmit which button was pressed, so later I could submit by doing thatButton.click()?

Ideally I would like to not modify the code for the buttons, just have a pure JavaScript addon that has this behavior.

I know that Firefox has evnt.explicitOriginalTarget, but I can't find anything for other browsers.

Answer 1

<form onsubmit="alert(this.submitted); return false;">     <input onclick="this.form.submitted=this.value;" type="submit" value="Yes" />     <input onclick="this.form.submitted=this.value;" type="submit" value="No" /> </form> 

jsfiddle for the same