Change text property of TextView

Hey All!

I want to change the "text" property of a TextView.

For reasons I don't want to explain to detailled, because it would be unnecessary, I have to do it this way:

document.getElementById(TextView ID).setAttribute('text', "new Text");

However in Debugging Mode, when I investigate the TextView Element, I get this confusing issue:

<spanid="TextView ID" [...]text="new Text">old Text</span>

Everytime I change the text, the old text is still displayed. Can anybody tell me, what's wrong with my code?

Best regards

Thomas