[l2h] multicolumn problem

[Martin Mrazek]

Hello,
I have the tabular like

\begin{tabular}{|l| r@{.}l| r@{.}l|}
\hline
ahoj & \multicolumn{2}{|c|}{nazdar} & \multicolumn{2}{|c|}{cau} \\
martin &  2&3   & 3&2 \\
\hline
\end{tabular}

when translated to HTML, the result is 

<P>
<TABLE CELLPADDING=3 BORDER="1">
<TR><TD ALIGN="LEFT">ahoj</TD>
<TD ALIGN="CENTER" COLSPAN=2>nazdar</TD>
<TD ALIGN="CENTER" COLSPAN=2>cau</TD>
<TD ALIGN="LEFT">.</TD><TD ALIGN="LEFT">&nbsp;</TD>
</TR>
<TR><TD ALIGN="LEFT">martin</TD>
<TD ALIGN="RIGHT">2</TD>
<TD ALIGN="LEFT">.</TD><TD ALIGN="LEFT">3</TD>
<TD ALIGN="RIGHT">3</TD>
<TD ALIGN="LEFT">.</TD><TD ALIGN="LEFT">2</TD>
</TR>
</TABLE>

what means  one number is separated into 3 columns. For example | 2| 
.  | 3| instead of 2.3

Can you advice please, how to fix it?

MM