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

function changeImagesArray(array) {
  var d = document; var img;
  for (var i=0; i<array.length; i+=2) {
    img = null; var n = array[i];
    if (d.images) {img = d.images[n];}
      if (!img && d.getElementById) {img = d.getElementById(n);}
        if (img) {img.src = array[i+1];}
  }
}

function changeImages() {
  changeImagesArray(changeImages.arguments);
}


function preloadImages() {
  if (document.images) {
    pre_menue_01_over = newImage('../daten/menue_leistungen_over.gif');
    pre_menue_02_over = newImage('../daten/menue_fotos_over.gif');
    pre_menue_01_over = newImage('../daten/menue_kontakt_over.gif');
    pre_menue_02_over = newImage('../daten/menue_links_over.gif');
  }
}

function popWindow(titel_get,uri_get,h_get,w_get){
	var titel = titel_get;
	var breite = w_get+10;
	var hoehe = h_get+61;
	var positionX=((screen.availWidth / 2) - breite / 2);
	var positionY=((screen.availHeight / 2) - hoehe / 2);
	pop = window.open('','popup','toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=0,fullscreen=0,width='+breite+',height='+hoehe+',top=10000,left=10000');
	pop.resizeTo(breite,hoehe);
	pop.moveTo(positionX,positionY);
	pop.location = uri_get;
	if (parseInt(navigator.appVersion) >= 4) { 
		pop.window.focus(); 
	}
}