How do we set the context menu header dynamically in the dll version 6.1.2

We were trying to ugrade the existing dll to 6.1.2 version from 5.4.

Here we have an issue with setting context menu header dynamically. We are not able to set the menu header dynamically in 6.1.2. But in 5.4, we are able to set the menu title dynamically uding the below code. But this is not working when we upgrade to 6.1.2.

var menutitle = e.text(); menudiv = document.getElementById('dpmMneu');
menudiv.firstChild.innerText = menutitle.toUpperCase();

Is there any way to set the menu header dynamically in the new version? Please help.

Thanks,

Nihas