var o = 'opacity';
/* scrollspy */
(function(a){this.ScrollSpy=new Class({Implements:[Options,Events],options:{min:0,mode:"vertical",max:0,container:window,onEnter:$empty,onLeave:$empty,onTick:$empty},initialize:function(b){this.setOptions(b);this.container=a(this.options.container);this.enters=this.leaves=0;this.max=this.options.max;if(this.max==0){var c=this.container.getScrollSize();this.max=this.options.mode=="vertical"?c.y:c.x;}this.addListener();},addListener:function(){this.inside=false;this.container.addEvent("scroll",function(){var b=this.container.getScroll();var c=this.options.mode=="vertical"?b.y:b.x;if(c>=this.options.min&&c<=this.max){if(!this.inside){this.inside=true;this.enters++;this.fireEvent("enter",[b,this.enters]);}this.fireEvent("tick",[b,this.inside,this.enters,this.leaves]);}else{if(this.inside){this.inside=false;this.leaves++;this.fireEvent("leave",[b,this.leaves]);}}}.bind(this));}});})($);

window.addEvent('domready', function() {
		var topbar = $('header-bar').set('tween',{ duration: 200 });
		var topbarME = function() { topbar.tween(o,1); }, topbarML = function() { topbar.tween(o,0.6); }, ws = window.getScrollSize().y;
		var ss = new ScrollSpy({
			min: 30,
			max: ws-30,
			onLeave: function(pos) {
				topbar.tween(o,1).removeEvents('mouseenter',topbarME).removeEvents('mouseleave',topbarML);
			},
			onEnter: function() {
				topbar.tween(o,0.6).addEvent('mouseenter',topbarME).addEvent('mouseleave',topbarML);
			}
		});

		var sf = $('search');
		var deftext = 'Suchbegriff';
		sf.addEvents({
				focus: function() {
					if (sf.get('value') == deftext) {
						sf.set('value', '');
					}
				},
				blur: function() {
					if (sf.get('value') == '') {
						sf.set('value', deftext);
					}
				}
		});
});