thomas.watson12

refer:

http://stackoverflow.com/questions/5577986/how-to-get-javascript-value-property-for-custom-textbox-control-in-asp-net

http://www.codeproject.com/Questions/74875/Access-custom-server-control-property-in-javascrip

Both of these example show how to get the value on the client.  However, this question is regarding setting the value on the server from the client.