ic_hokkaido=1;
function hokkaido(){
ic_hokkaido=-1*ic_hokkaido;
 for (i = 3; i <= 9; 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 = 10; i <= 19; 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 = 20; i <= 26; 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 = 27; i <= 32; 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 = 33; i <= 37; 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 = 38; i <= 41; 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 = 42; i <= 49; 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;
  }
 }

}