function newImage(arg) {
  if (document.images) {
    rslt = new Image();
    rslt.src = arg;
    return rslt;
  }
}

function changeImages() {
  if (document.images && (preloadFlag == true)) {
    for (var i=0; i<changeImages.arguments.length; i+=2) {
      document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
    }
  }
}

var preloadFlag = false;
function preloadImages() {
  if (document.images) {
    icons_02_over = newImage("images/icons_02-over.gif");
    icons_03_over = newImage("images/icons_03-over.gif");
    icons_04_over = newImage("images/icons_04-over.gif");
    icons_05_over = newImage("images/icons_05-over.gif");
    icons_06_over = newImage("images/icons_06-over.gif");
    preloadFlag = true;
  }
}


function showdiv(id) {
   document.getElementById(id).style.display = "inline";
}
function hidediv(id) {
   document.getElementById(id).style.display = "none";
}



function zeige() {
   document.getElementById('essen').style.display = "inline";
}
function verstecke() {
   document.getElementById('essen').style.display = "none";
}

function show_row(id) {
   if (document.getElementById(id).style.display == "none") {
      if (window.navigator.userAgent.indexOf("MSIE ") > -1) {
         /* Internet Explorer */
         document.getElementById(id).style.display = "block";
      } else {
         /* Mozilla & Co */
         document.getElementById(id).style.display = "table-row";
      }
   } else {
      document.getElementById(id).style.display = "none";
   }
}