nextfield = "none"; // name of first box on page
netscape = "";
ver = navigator.appVersion; len = ver.length;
for(iln = 0; iln < len; iln++) if (ver.charAt(iln) == "(") break;
netscape = (ver.charAt(iln+1).toUpperCase() != "C");

if (netscape)
{
	document.onkeyup = keyDown; // work together to analyze keystrokes
	document.captureEvents(Event.KEYDOWN|Event.KEYUP);
}
else
{
	document.onkeypress = keyDown; // work together to analyze keystrokes
}

max1 = 20;
max2 = 30;

function validate()
{
   if ((document.KAForm.AText_z1.value == "") && (document.KAForm.AText_z2.value == ""))
   {
      alert("\nSie haben keinen Anzeigentext eingegeben.\nBitte füllen Sie das Feld aus.");
      document.KAForm.AText_z1.select();
      document.KAForm.AText_z1.focus();
	  nextfield = "AText_z2";
	  return false;
   }

   if ((document.KAForm.am_mi_1.checked == false) && (document.KAForm.am_sa_1.checked == false) &&
       (document.KAForm.am_mi_2.checked == false) && (document.KAForm.am_sa_2.checked == false) &&
       (document.KAForm.am_mi_3.checked == false) && (document.KAForm.am_sa_3.checked == false) &&
       (document.KAForm.am_mi_4.checked == false) && (document.KAForm.am_sa_4.checked == false) &&
	   (document.KAForm.am_sa_0.checked == false))
   {
      alert("\nBitte wählen Sie das Erscheinungsdatum.");
	  return false;
   }
   
}

function CountMaxErsteZeile()
{ 
	if (document.KAForm.AText_z1.value.length == max1) 
	{	
		document.KAForm.AText_z2.focus(); 
		document.KAForm.AText_z2.select(); 
	}
}

function CountMaxZeile2()
{
	if (document.KAForm.AText_z2.value.length == max2) 
	{
		document.KAForm.AText_z3.focus(); 
	}
}

function CountMaxZeile3()
{
	if (document.KAForm.AText_z3.value.length == max2) 
	{
		document.KAForm.AText_z4.focus(); 
	}
}

function CountMaxZeile4()
{
	if (document.KAForm.AText_z4.value.length == max2) 
	{
		document.KAForm.AText_z5.focus(); 
	}
}

function CountMaxZeile5()
{
	if (document.KAForm.AText_z5.value.length == max2) 
	{
		document.KAForm.AText_z6.focus(); 
	}
}

function CountMaxZeile6()
{
	if (document.KAForm.AText_z6.value.length == max2) 
	{
		document.KAForm.AText_z7.focus(); 
	}
}
function CountMaxZeile7()
{
	if (document.KAForm.AText_z7.value.length == max2) 
	{
		document.KAForm.AText_z8.focus(); 
	}
}
function CountMaxZeile8()
{
	if (document.KAForm.AText_z8.value.length == max2) 
	{
		document.KAForm.AText_z9.focus(); 
	}
}
function CountMaxZeile9()
{
	if (document.KAForm.AText_z9.value.length == max2) 
	{
		document.KAForm.AText_z10.focus(); 
	}
}
function CountMaxZeile10()
{
	if (document.KAForm.AText_z10.value.length == max2) 
	{
		document.KAForm.AText_z11.focus(); 
	}
}
function keyDown(DnEvents) 
{ 
	k = (netscape) ? DnEvents.which : window.event.keyCode;
	if (k == 13)
	{ 
		if (nextfield == 'none') return true; 
		else 
		{
			eval('document.KAForm.' + nextfield + '.focus()');
			return false;
		}
	}
	else
	{
		if (nextfield == 'AText_z2') CountMaxErsteZeile();
		if (nextfield == 'AText_z3') CountMaxZeile2();
		if (nextfield == 'AText_z4') CountMaxZeile3();
		if (nextfield == 'AText_z5') CountMaxZeile4();
		if (nextfield == 'AText_z6') CountMaxZeile5();
	}
	return true;
}