/*
	--------------------------------------------------------------------------
	PopUp Schrift-Vergroessern
	--------------------------------------------------------------------------
*/
function fenster(w,h,ziel) {
  h = h - 20; var x=0, y=0, parameter="";
  if (w < screen.availWidth || h < screen.availHeight) {
    x = (screen.availWidth - w - 12) / 2;
    y = (screen.availHeight - h - 204) / 2;
    if (window.opera) y = 0; // Opera positioniert unter den Symbolleisten
    if (x<0 || y<0) { x=0; y=0; }
    else parameter = "width=" + w + ",height=" + h + ",";   }
  parameter += "left=" + x + ",top=" + y;
  parameter += ",menubar=0,location=0,toolbar=0,status=0";
  parameter += ",resizable=0,scrollbars=0";
  var Fenster = window.open(ziel,"fenster",parameter);
  if (Fenster) Fenster.focus();
  return !Fenster;   }
  
  
  
function checkradio(field) {
	for (i=0; i<field.length; i++) {
		if(field[i].checked == true) {
			return field[i].value;
		}
	}
}

function checkPollInput(obj, nr, last)
{
	if(typeof checkradio(obj) != "undefined")
	{
		if(last == true)
		{
			document.forms["form_poll"].submit();
		}
		else
		{
			document.getElementById('question_'+nr).style.display='none';
			document.getElementById('question_'+(nr+1)).style.display='block';
		}
	}
	else
	{
		alert("Bitte waehlen Sie eine Antwort aus.");
	}
}

function goBack(nr)
{
	document.getElementById('question_'+(nr-1)).style.display='block';
	document.getElementById('question_'+nr).style.display='none';
}

function checkPollPrintForm()
{
	if(
		typeof checkradio(document.getElementsByName('salutation_print')) != 'undefined' &&
		document.getElementById('firstname_print') != '' &&
		document.getElementById('lastname_print') != ''
	)
	{
		document.forms["pollPrintForm"].submit();
	}
	else
	{
		alert('Bitte fuellen Sie das Formular aus.');
	}
}

function checkPollSendForm()
{
	if(
		typeof checkradio(document.getElementsByName('salutation')) != 'undefined' &&
		document.getElementById('firstname') != '' &&
		document.getElementById('lastname') != '' &&
		document.getElementById('phone') != ''
	)
	{
		document.forms["pollSendForm"].submit();
	}
	else
	{
		alert('Bitte fuellen Sie alle Pflichtfelder aus.');
	}
}