// JavaScript Document
var currentItem = 'home';

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function showItem(id) {
	if (id != currentItem) {
		document.getElementById(currentItem).style.display = 'none';
		document.getElementById(id).style.display = 'block';
		//alert('<img src="images/' + id + '_titel.gif" alt="Home" width="280" height="30" />');
		document.getElementById('titel').innerHTML = '<img src="images/' + id + '_titel.gif" alt="' + id + '" />';
		currentItem = id;		
		if (document.getElementById("subMenuBalk") != null) document.getElementById("subMenuBalk").style.display = 'none';
		if (document.getElementById("buffetBalk") != null) document.getElementById("buffetBalk").style.display = 'none';
		
	}	
}

function setAlpha(id, alpha) {
	var idStyle = document.getElementById(id).style;	
	idStyle.filter = "Alpha(Opacity=" + alpha + ")";	
	idStyle.opacity = alpha/100;	
}