function answer(){

  var strVal;
  var intCnt=1;
  var aryAnswer = new Array;

  aryAnswer[intCnt++]=2;
  aryAnswer[intCnt++]=2;
  aryAnswer[intCnt++]=3;
  aryAnswer[intCnt++]=1;
  aryAnswer[intCnt++]=2;
  aryAnswer[intCnt++]=1;
  aryAnswer[intCnt++]=3;
  aryAnswer[intCnt++]=1;
  aryAnswer[intCnt++]=2;
  aryAnswer[intCnt++]=1;
  
  //回答表示
  for (i=1;i<=10; i++){
    strVal="";
    if (document.getElementById('q'+i+'_1').checked==true){strVal=document.getElementById('lblq'+i+'_1').innerHTML;}
    if (document.getElementById('q'+i+'_2').checked==true){strVal=document.getElementById('lblq'+i+'_2').innerHTML;}
    if (document.getElementById('q'+i+'_3').checked==true){strVal=document.getElementById('lblq'+i+'_3').innerHTML;}
    
    if (strVal==""){
      strVal="<br />あなたの答えはありません";;
    }else{
      strVal="<br />あなたの答えは　"+strVal;
    }
    strVal+="<br /><span class='ancer'>正解は";
    strVal+=document.getElementById('lblq'+i+'_'+aryAnswer[i]).innerHTML;
    strVal+="</span>";
    document.getElementById('quiz_'+i).innerHTML=strVal;
  }
  
  //見出し絵、文章非表示
  document.getElementById('question_index').innerHTML="";
  
  //答え合わせボタン非表示
  document.getElementById('ancer_btn').style.visibility="hidden";
  
  //ページトップへ移動
  window.location="#top";
  
  return;
  
}