var Plausi = {
  init: function() {
     // Frage 1
    Event.observe($('f01'), 'change', Plausi.frage_1);
    Event.observe($('f01_sonstiges'), 'focus', function() { $('f01_sonstiges').value = ''; });
    Plausi.frage_1();

    // 2
    $$('#frage_2_boxen input').each(function(element) {
      Event.observe(element, 'click', Plausi.frage_2_check);
    });
    // Event.observe($('f02_01'), 'click', Plausi.frage_2_keine);
    Event.observe($('f02_20'), 'click', Plausi.frage_2_sonstiges);
    Plausi.frage_2_sonstiges();

    // 3
    Event.observe($('f03_06_01'), 'click', Plausi.frage_3_sonstiges);
    Plausi.frage_3_sonstiges();

    // 4
    Event.observe($('f04_20'), 'click', Plausi.frage_4_sonstiges);
    Plausi.frage_4_sonstiges();

    // 10
    Event.observe($('f10_country'), 'change', Plausi.frage_10);
    Plausi.frage_10();

    // 12 (optional)
    if ($('f12_20')) Event.observe($('f12_20'), 'click', Plausi.frage_12_sonstiges);
    Plausi.frage_12_sonstiges();

    // 13 (optional)
    if ($('f13_20')) Event.observe($('f13_20'), 'click', Plausi.frage_13_sonstiges);
    Plausi.frage_13_sonstiges();

    // 14 (optional)
    if ($('f14_20')) Event.observe($('f14_20'), 'click', Plausi.frage_14_sonstiges);
    Plausi.frage_14_sonstiges();

    Event.observe($('theform'), 'submit', Plausi.run);
    new Validation('theform');
  },

  frage_1: function(event) {
    var select = $('f01');
    if (select.options[select.selectedIndex].value == '20') {
      $('f01_sonstiges_textfeld').show();
    } else {
      $('f01_sonstiges_textfeld').hide();
    }
  },


  // max. 3 ausgewaehlt
  frage_2_check: function(event) {
    var checked = 0;

    if ($('f02_01').checked) {
      $$('#frage_2_boxen input').each(function(e) {
        if (e.id != 'f02_01') {
        	e.checked = false;
        	e.disabled = true;
        }
      });
    } else {
      $$('#frage_2_boxen input').each(function(e) {
        if (e.checked) checked++;
      });

      if (checked == 3) {
        $$('#frage_2_boxen input').each(function(e) {
          if (!e.checked && e.id != 'f02_sonstiges') e.disabled = true;
        });
      } else {
        $$('#frage_2_boxen input').each(function(e) {
          e.disabled = false;
        });
      }
    }
    return true;
  },

  frage_2_keine: function(event) {
    if ($('f02_01').checked) {
      $$('#frage_2_boxen input').each(function(e) {
        if (e.id != 'f02_01') {
        	e.checked = false;
        	e.disabled = true;
        }
      });
    }
  },

  frage_2_sonstiges: function(event) {
    if ($('f02_20').checked) {
      $('f02_sonstiges_textfeld').show();
    } else {
      $('f02_sonstiges_textfeld').hide();
    }
  },

  frage_3_sonstiges: function(event) {
    if ($('f03_06_01').checked) {
      $('f03_sonstiges_textfeld').show();
    } else {
      $('f03_sonstiges_textfeld').hide();
    }
  },

  frage_4_sonstiges: function(event) {
    if ($('f04_20').checked) {
      $('f04_sonstiges_textfeld').show();
    } else {
      $('f04_sonstiges_textfeld').hide();
    }
  },

  frage_10: function(event) {
    var country_select = $('f10_country');
    var state_select   = $('f10_state');
    if (country_select.options[country_select.selectedIndex].value == 'D') {
		state_select.disabled = false;
    } else {
		state_select.selectedIndex = 0;
		state_select.disabled = true;
    }
  },

  frage_12_sonstiges: function(event) {
  	if ($('f12_20')) {
      if ($('f12_20').checked) {
        $('f12_sonstiges_textfeld').show();
      } else {
        $('f12_sonstiges_textfeld').hide();
      }
    }
  },

  frage_13_sonstiges: function(event) {
  	if ($('f13_20')) {
	  if ($('f13_20').checked) {
	    $('f13_sonstiges_textfeld').show();
	  } else {
	    $('f13_sonstiges_textfeld').hide();
	  }
	}
  },

  frage_14_sonstiges: function(event) {
  	if ($('f14_20')) {
      if ($('f14_20').checked) {
        $('f14_sonstiges_textfeld').show();
      } else {
        $('f14_sonstiges_textfeld').hide();
      }
    }
  },

  run: function() {
  }
};

Event.observe(window, 'load', Plausi.init);