Add $js->request()

request($url, $options = array())
Generate a javascript snippet to create an XmlHttpRequest or 'AJAX' request.

Event Options
•complete - Callback to fire on complete.
•success - Callback to fire on success.
•before - Callback to fire on request initialization.
•error - Callback to fire on request failure.
Options
•method - The method to make the request with defaults to GET in more libraries
•async - Whether or not you want an asynchronous request.
•data - Additional data to send.
•update - Dom id to update with the content of the request.
•type - Data type for response. 'json' and 'html' are supported. Default is html for most libraries.
•evalScripts - Whether or not
•dataExpression - Should the data key be treated as a callback. Useful for supplying $options['data'] as another Javascript expression.
Example use