How do you get a return value in javascript from a Stripes ActionBean?

Question

I am attempting to use Google's Channel API to construct a 2-player game session. I am using a JavaScript function to start opening the channel, and I have a Stripes ActionBean that opens the channel and obtains a new Token for the specific user.

How do I call the ActionBean from JavaScript and get the "String token" from the ActionBean? ${actionBean.token} did not work in the .js file.

PS: I am new to these languages and would appreciate the time and effort invested in answering my question. Thanks !

Edit: Thank you ! I have read the proposed links and I am excited about the JavaScriptResolution. How do I receive the JavaScriptResolution in javascript? Can anyone kindly provide a code snippet perhaps?