// JavaScript Document

function popupwindow (url,name) {
 fenster = window.open(url, name, "width=600,height=400,status=no,scrollbars=yes,resizable=no");
 fenster.focus();
}


function validate_form() {
  validity = true; // assume valid
  if (!check_empty(document.form1.name.value))
        { validity = false; alert('Kein Namen angegeben!'); }
  if (!check_email(document.form1.email.value))
        { validity = false; alert('Ihre eMail ist ungültig!'); }
  if (!check_empty(document.form1.text.value))
        { validity = false; alert('Bitte einen Text eingeben.'); }
		
  return validity;
}

function check_empty(text) {
  return (text.length > 0); // gibt false zurück wenn leer
}

function check_email(address) {
  if ((address == "")
    || (address.indexOf ('@') == -1)
    || (address.indexOf ('.') == -1))
      return false;
  return true;
}


function FensterOeffnen (Adresse) {
  MeinFenster = window.open(Adresse, "Zweitfenster", "width=300,height=400,left=100,top=200");
  MeinFenster.focus();
}