Event.observe(window, 'load', initialise_help_button);

Event.addBehavior({
	'a.inline_help:click' : function(ev) {
		display_help_popup(this.href);
		Event.stop(ev);		
	}
});

function initialise_help_button(){
	if ($('help')) {
		Event.observe('help','click',function(ev){
			display_help_popup($('help').href);
			Event.stop(ev);
		});
   };
}

function display_help_popup(url) {
	var help_win = window.open(url,'help_popup','status=no,width=620,height=500,scrollbars=yes,resizable=yes');
}