[html-formfu] How to make checkbox (checked/unchecked) database driven

[kewei xiao]

   In the update of my form, I have a checkbox called 'administrator'.  
I want this checkbox to be checked when the user is administrator, 
otherwise the checkbox stays unchecked.

  So far I have written an customized element which can show the 
checkbox checked, but it stays checked even the user is not administrator. 

  I am not sure how to fix this problem.  Please advise.

Kewei