Pass HTML tag to Grid column header

[Dongmei Cao]

Hi,

I would like to show superscribe in the Grid Column header. For example, I have 
the following Grid:

<table t:type="Grid" t:source="persons" t:row="person" t:model="model"
        t:include="firstname,lastname,region,startdate">
</table>

and  firstname-label=First Name <sup>1</sup>. The problem is the HTML table 
literally displays the header as "First Name <sup>1</sup>". Anyone has any idea 
what I need to do display the 1 as superscribe?

I do not want to use <t:parameter name="firstnameHeader">First Name 
<sup>1</sup></t:parameter> because I do not want to overwrite the sorting on 
the column.

Thanks!

Dongmei