Question

I am using prototype to change the onclick function of the button. The following code is working well.

$('button_id').setAttribute('onclick','test();');

but the following is not working

$$('div#divid button.buttonclass').setAttribute('onclick','test();'); or

$$('button.buttonclass').setAttribute('onclick','test();');

I just want to change the button onclick function. The button is inside a div element. Button has the class name button only and do not have the id attribute.

Answer 1

Try:

$$('div#divid button.buttonclass')[0].setAttribute('onclick','test();');

Or

$$('button.buttonclass')[0].setAttribute('onclick','test();');

Class selector returns matching elements in form of ARRAY.