Event.observe(window, 'load', init, false);

function init(){
       Event.observe('Suche', 'keyup', greet, false);
}


function greet(){
     var url = '/inc/ajax/regelsuche.php';
     var pars = 'anfrage='+escape($F('Suche'));
     var target = 'Suchergebnis';
     var myAjax = new Ajax.Updater(target, url, {method: 'get', parameters: pars});
	 
}