HTML is a Markup Language, not a programming language, so has no logic
structures.
If you are developing in .Net, however, you can embed inline scripting on
the page as:
<% if (m_GlobalVariable == "2") %>
<% { %>
<tr valign="top">
<td align="right">My Condition1 :</td>
</tr>
<% } %>
The <% %> tags are where your actual code will go.
hope this helps