// JavaScript Document
var _Opacity = new Array();
var _SlideInterval = new Array();
var _MenueButtonActive = 0;
var _IE = (document.all && !document.captureEvents);

function btnHover(id, art){
	if(_MenueButtonActive == id || !document.getElementById("menueBtn" + id)) return;
	if(_Opacity[id] == null){
		_Opacity[id] = 0;	
	}
	if(_SlideInterval[id] != null){
		window.clearInterval(_SlideInterval[id]);
		_SlideInterval[id] = null;
	}
	
	_SlideInterval[id] = window.setInterval("slide(" + id + ", " + art + ")", 10);
}

function slide(id, art){
	_Opacity[id] += art == 1 ? 5 : -5; // art: 1 = einblenden, 0 = ausblenden
	
	document.getElementById("menueBtn" + id).style.opacity = _Opacity[id]/100;
	if(_IE) document.getElementById("menueBtn" + id).filters.Alpha.opacity = _Opacity[id];
	
	if( (art == 1 && _Opacity[id] >= 100) || (art == 0 && _Opacity[id] <= 0) ){
		_Opacity[id] = art == 1 ? 100 : 0;
		document.getElementById("menueBtn" + id).style.opacity = _Opacity[id]/100;
		if(_IE) document.getElementById("menueBtn" + id).filters.Alpha.opacity = _Opacity[id];
		window.clearInterval(_SlideInterval[id]);
		_SlideInterval[id] = null;
	}
}