AppleScript to Attach a file via alias instead of embedded?

[George Crump]

Looking for some help. I am trying to see if a script exists that  
would change/replace the attach button with a Link button/script that  
would always set up an alias to a file as opposed to embedding the  
file. I know you can do this by ctrl dragging a file but some time  
its easier to do via a open file dialog box. Has anyone seen this or  
can someone give provide some sample code?

Thanks in Advance,

George