_ic_hokkaido=1;
function _hokkaido(){
_ic_hokkaido=-1*_ic_hokkaido;
 for (i = 0; i <= 6; i++) {
  if ( _ic_hokkaido == -1 ) {
   document.form55.elements[i].checked=true;
  } else {
   document.form55.elements[i].checked=false;
  }
 }
}

_ic_kanto=1;
function _kanto(){
_ic_kanto=-1*_ic_kanto;
 for (i = 7; i <= 16; i++) {
  if ( _ic_kanto == -1 ) {
   document.form55.elements[i].checked=true;
  } else {
   document.form55.elements[i].checked=false;
  }
 }
}

_ic_tokai=1;
function _tokai(){
_ic_tokai=-1*_ic_tokai;
 for (i = 17; i <= 23; i++) {
  if ( _ic_tokai == -1 ) {
   document.form55.elements[i].checked=true;
  } else {
   document.form55.elements[i].checked=false;
  }
 }
}

_ic_kinki=1;
function _kinki(){
_ic_kinki=-1*_ic_kinki;
 for (i = 24; i <= 29; i++) {
  if ( _ic_kinki == -1 ) {
   document.form55.elements[i].checked=true;
  } else {
   document.form55.elements[i].checked=false;
  }
 }
}

_ic_chugoku=1;
function _chugoku(){
_ic_chugoku=-1*_ic_chugoku;
 for (i = 30; i <= 34; i++) {
  if ( _ic_chugoku == -1 ) {
   document.form55.elements[i].checked=true;
  } else {
   document.form55.elements[i].checked=false;
  }
 }
}

_ic_shikoku=1;
function _shikoku(){
_ic_shikoku=-1*_ic_shikoku;
 for (i = 35; i <= 38; i++) {
  if ( _ic_shikoku == -1 ) {
   document.form55.elements[i].checked=true;
  } else {
   document.form55.elements[i].checked=false;
  }
 }
}

_ic_kyushu=1;
function _kyushu(){
_ic_kyushu=-1*_ic_kyushu;
 for (i = 39; i <= 46; i++) {
  if ( _ic_kyushu == -1 ) {
   document.form55.elements[i].checked=true;
  } else {
   document.form55.elements[i].checked=false;
  }
 }
}

_ic_zenkoku=1;
function _zenkoku(){
_ic_zenkoku=-1*_ic_zenkoku;
 for (i = 0; i <= 46; i++) {
  if ( _ic_zenkoku == -1 ) {
	  document.form55.elements[i].checked=true;
  } else {
	  document.form55.elements[i].checked=false;
  }
 }

}