Setting Clantag and Title

Hi everybody,

got a little problem at the moment. Tried to write my first Clantag + Title changer, but i get stuck. Whenever i set my new Title and it is shorter than the old one, the letters from the old one behind the new one are still there. One Example for this:

1. Set Title "test" ---> Title: test
2. Set Title "mpghrules" ---> Title: mpghrules
3. Set Title "xy" ----> Title: xyghrules

The same with the clantag. Anybody can explain me how to fix this? I think i have to clear the String before i re-fill it, but how?

Thanks in advance
x2Sorcer