Hi friends,
Small forms are sometimes placed within a TD element within a table. This can be a useful for positioning a form relative to other content, but it doesn't help position the form-related elements relative to each other. To position form-related elements relative to each other, the entire table must be within the form. You cannot start a form in one TH or TD element and end in another. You cannot place the form within the table without placing it inside a TH or TD element. You can put the table inside the form, and then use the table to position the INPUT, TEXTAREA, SELECT, and other form-related elements, as shown in the following example.

<FORM ACTION="[URL]">
<TABLE BORDER="0">
<TR>
<TH>Student Roll No.</TH>
<TD><INPUT TYPE="text" NAME="RollNum"></TD>
</TR>
<TR>
<TH>S_Name:</TH>
<TD><INPUT TYPE="Text" NAME="S_Name"></TD>
</TR>
<TR>
<TD> </TD>
<TD><INPUT TYPE="submit" NAME="Submit"></TD>
</TR>
</TABLE>
</FORM>