//create a function
var tweenHighlight = function(event) {
        //here we are using event.target, passed from the function
        //this translates to "the target of the event"
        //and since the effect applies to the same element that the event is attached to
        //we don't have to create the selector again
        //Note: addEvent will automatically pass the event object as a parameter
        //to the function it calls... very handy
	
	event.target.tween('border-color', '#4F7777');

}
var removeTweenHighlight = function(event) {
       	event.target.tween('border-color', '#FFF');

}
 
window.addEvent('domready', function() {
	
	$$('.highLight').addEvent('focus', tweenHighlight);
	$$('.highLight').addEvent('blur', removeTweenHighlight);
 });