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If you add any class that extends AbstractDefaultAjaxBehavior to your page, wicket-ajax.js will be added to the header ofyour web page. wicket-ajax.js provides you with two basic methods to call your component:

Wicket 6.0+

Wicket.Ajax.get( )
and
Wicket.Ajax.post( )

Older Versions

function wicketAjaxGet(url, successHandler, failureHandler, precondition, channel)
and
function wicketAjaxPost(url, body, successHandler, failureHandler, precondition, channel)

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Example - Wicket 6.0+

This snippet is taken from a piece of code that makes use of PackageTextTemplate, which is added in the renderHead( component, response ) of AbstractDefaultAjaxBehavior

		String componentMarkupId = component.getMarkupId();
		String callbackUrl = getCallbackUrl().toString();

		Map<String, Object> map = new HashMap<>();
		map.put( "callbackUrl", callbackUrl );
		map.put( "args", "Your Arguments Here" );
		map.put( "componentMarkupId", componentMarkupId );

		PackageTextTemplate ptt = new PackageTextTemplate( clazz, "resources/main.js" );
		OnDomReadyHeaderItem onDomReadyHeaderItem = OnDomReadyHeaderItem.forScript( ptt.asString( map ) );

var wcall = Wicket.Ajax.get({ u: '${callbackUrl}' + '${args}' });

Example - Older Versions

function callWicket() {
   var wcall = wicketAjaxGet('$url$' + '$args$', function() { }, function() { });
}

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