ASP.net Control help

[Strider]

Hey there.
right im having an issue that i cant figure out why it does not work.

i have a web project, called "Common", which contains server controls and other common items i will use in my other web projects in the solution.

in this project i have a class which renders javascript files to be added to the webpage. so it is basically a class, "JavaScriptInjectionControl", that inherits from System.Web.UI.Control.

Now in my other project in my solution i add a reference to the library (dll) produced by my Common project.
Now here i have a UserControl in which i want to add the JavaScriptInjectionControl to my servercontrol.
To do this i modify the web.config file to add the assembly
<add assembly="Common" namespace="Common" tagPrefix="adfc"/>

Now i go back to my UserControl and in the design mode i can see <adfc:JavaScriptInjectionControl> in the intellisense.

Everything looks great.

so i add <adfc:JavaScriptInjectionControl id="jsic1" runat="server"></adfc:JavaScriptInjectionControl>

My problem is that when my user control runs it does not implement this JavaScriptIngectionControl and i have no idea why.

Everything seems fine, i get no compile or runtime errors, my webpage just doesnt seem to render it.

(If i add a usercontrol into my project that implements the server control from the common project add this to my webpage it works!!!!)

Thanks for any help