This example demonstrates a AjaxTimerBehavior as well as updating of multiple components on the page.
This AjaxTimerBehavior can be attached to any component and will recieve a callback every x number of milliseconds.
Within this callback it is very simple to update any number of components via ajax.
	| Los Angeles: | [la clock] | 
	| New York: | [ny clock] | 
	| London: | [london clock] | 
	| Prague: | [prague clock] | 
	| Moscow: | [moscow clock] |