Dynamic List in UPDATE page

["Mardirousi"]

ASP VBSCRIPT / SQL Server 2005 / Dreamweaver CS3

 We have an update page with an Dynamic List with the option for 
multi-selections allowed. The field is populated from a recordset. I want to 
highlight the options already selected. For example:

 say the recordset has the following options:
 - one
 - two
 - three

 and two and htree are already in the database: two, three

 How can i populate the list with two and three already highlightd (selected)?