Simple function to quickly set a cookie. The function is attached to window so you can call it anywhere once it's loaded.

set-cookie.js.coffee

# The setCookie method lets you set a cookie quickly.
window.setCookie = ( c_name, value, exdays = 5 ) ->
	exdate = new Date();
	exdate.setDate exdate.getDate() + exdays
	c_value = "#{ escape( value ) }; expires=#{ exdate.toUTCString() }"
	document.cookie = "#{ c_name }=#{ c_value }"