Hi,
I've been toying with something similar which might help you. In remote_function method, I wanted to insert some javascript to dynamically calculate the URL but the remote_function method wanted to use a string for URL. So I kludged my way through it with the following:
remote_function(:url => "'+this.form.action+'", :update => "'+this.id +'_update", ...[other params]...)
Can you see what I'm doing? It's hard to read - note that everything between the double quotes is all javascript. It's easier to read once you know that. Basically, I'm writing javascript that closes the string quote that remote_function opens for :url, and then I insert some javascript code (and reopen the string and add text in the case of the "update" param). This results in Javascript that looks like:
new Ajax.Updater(''+this.id+'_update', ''+this.form.action+'')
I think it's a pretty clean way of generating dynamic JS code in Rails js helper functions. It's a little fugly but not too bad..
hth,
Steve
