jQuery: How to add 'onchange' attribute in a 'select' tag?

jQuery: How to add ‘onchange’ attribute in a ‘select’ tag?

<select id="sel_id">
</select>

Works for me if I use the native setAttribute().

Also, remember that you need quotes around the selector.

$("#sel_id")[0].setAttribute("onchange", "foo()");

the final html will be

<select id="sel_id" onchange="foo();" >
</select>

Also remember to define foo in the global namespace, and not inside jQuery’s .ready() function.

Source:
http://stackoverflow.com/a/3638016