Zennoposter : Own Javascript not working

[Rohan]

Hey, trying this snippet in zennoposter on the own javascript segment. It just doesn't work !
Please help, going mad

var doc = document.getElementsByClassName('list-view-item ui-selected');
var classname = doc[0].className;
classname;

 

[VladZen]

Do you run script locally or on page?

 

[txseo]

I too am having similar problems with JS not working. I fully tested the script is Chrome debugger and it works flawlessly. Bring it over to ZP and its a different story altogether.