// JavaScript Document

function classChange(styleChange,item)  {
  item.className = styleChange;
  }
  
function MM_showHideLayers() { //v9.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) 
  with (document) if (getElementById && ((obj=getElementById(args[i]))!=null)) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}

function chkFormular () {
  if (document.Callback.Name.value == "Name") {
    alert("Bitte Ihren Namen eingeben!");
    document.Callback.Name.focus();
    return false;
  }
  if (document.Callback.Firma.value == "Firma") {
    alert("Bitte Ihre Firma eingeben!");
    document.Callback.Firma.focus();
    return false;
  }
  if (document.Callback.Telefon.value == "Telefon") {
    alert("Bitte Ihre Telefonnummer eingeben!");
    document.Callback.Telefon.focus();
    return false;
  }
}