function change(id, newClass) {
identity=document.getElementById(id);
identity.className=newClass;
}

function getHTTPObject() {
	var xmlhttp;
	try { xmlhttp = new ActiveXObject("Msxml2.XMLHTTP"); }
	catch (e) { try { xmlhttp = new ActiveXObject("Microsoft.XMLHTTP"); }
	catch (e) { try { xmlhttp = new XMLHttpRequest(); }
	catch (e) { xmlhttp = null; }}}
	return xmlhttp;
}

var http = getHTTPObject();

function go (page) {
  	document.location.href = 'index.php?' + page;
}
var field = false;
function setField (f) {
	field = f;
}
function sTastendruckALL (Ereignis) {
  if (field) {
    if (!Ereignis)
      Ereignis = window.event;
   if (Ereignis.keyCode == 13) {
     switch(field) {
	 	case "kid":
			if (document.login.kid.value.length == 8) {
				document.login.user.focus();
			}
		     Ereignis.keyCode = 8;
		     Ereignis.cancelBubble = true;
		     Ereignis.returnValue = false;
		     return false;
			break;
	 	case "user":
			if (document.login.user.value != "") {
				document.login.pass.focus();
			}
		     Ereignis.keyCode = 8;
		     Ereignis.cancelBubble = true;
		     Ereignis.returnValue = false;
		     return false;
			break;
	 	case "pass":
			if (document.login.pass.value != "") {
				document.login.submit();
			}
		     Ereignis.keyCode = 8;
		     Ereignis.cancelBubble = true;
		     Ereignis.returnValue = false;
		     return false;
			break;
	 	case "anzahl":
			if (document.getElementById("anzahl").value > 0) {
				calc(document.getElementById('anzahl').value,document.getElementById('LM_Art').value);
			}
		     Ereignis.keyCode = 8;
		     Ereignis.cancelBubble = true;
		     Ereignis.returnValue = false;
		     return false;
			break;
	  }
   }
 }
}
document.onkeydown = sTastendruckALL;