Get Attribute value in J_ALTUI_plugins.js?

Hi Amg0,

Trying to go the fancy route there, so I want to add some more logic :wink:

How can I get the value of an attribute in the J_ALTUI_plugins.js file? In the latest release I see some mention about the missing MultiBox.getAttr function, and I see that is indeed not available. What can I use?

TIA, cheers Rene