[l2h] No LaTex-source in the alternative text

[Margitta Lachmann]

Hello,

how can I prevent "latex2html" writing the LaTex-source in the alternative text from each converted formula?
e.g.
<img src="javascript:void(0);" alt="$\t_k = k\cdot\Delta t$">

Thanks in advance.

Margitta