// self check
function Check(theForm){
  var radio_btn = 10;

  var z_marks = 0;

  var cnt = 5;
  var z = new Array("Q1","Q2","Q3","Q4","Q5");

  var q_item = 5;
  var k = 0;

  for(var i=0; i<radio_btn; i++){
    if(theForm.elements[i].checked == true){
      k++;
      var radio_name = theForm.elements[i].name;
      var radio_mark = parseInt(theForm.elements[i].value);
      for(var j=0; j<cnt; j++){
        if(z[j] == radio_name){
          z_marks = z_marks + radio_mark;
          break;
        }
      }
    }
  }
  if(k<q_item){
    msg = "すべての質問に回答してください。";
    alert(msg);
  }else{
    newwindow(z_marks);
    return;
  }
}

function newwindow(z_marks){
  if(z_marks > 0){
    location.href="yes.html";
  }else{
    location.href="no.html";
  }
 }