javascript - Changing button value on button click -

just starting out in xpages , ran silly problem:

i have button (id- "button2") , has label "aaa". i'm trying change value of button on button click value "kappa123". i've included javascript in "client" tab in script editor.

javascript:

var elem = document.getelementbyid("button2"); if (elem.value=="aaa") elem.value="kappa123"; else elem.value = "aaa"; 

i don't error , nothing happens. doing wrong?

use

var elem = document.getelementbyid("#{id:button2}"); if (elem.innerhtml=="aaa") elem.innerhtml="kappa123"; else elem.innerhtml = "aaa"; 

you can't use element id in client side code direct id gets "renamed" xpages. #{id:button2} rendered id.