function validate() {

   if (document.yesterday.q1.value !="got up") {
       alert("try again for 1");
       document.yesterday.q1.focus();
       document.yesterday.q1.select();
       return false;
}
   if (document.yesterday.q2.value !="went") {
       alert("try again for 2");
       document.yesterday.q2.focus();
       document.yesterday.q2.select();
       return false;
}
   if (document.yesterday.q3.value !="had") {
       alert("try again for 3");
       document.yesterday.q3.focus();
       document.yesterday.q3.select();
       return false;
}
   if (document.yesterday.q4.value !="went") {
       alert("try again for 4");
       document.yesterday.q4.focus();
       document.yesterday.q4.select();
       return false;
}
   if (document.yesterday.q5.value !="cleaned") {
       alert("try again for 5");
       document.yesterday.q5.focus();
       document.yesterday.q5.select();
       return false;
}
   if (document.yesterday.q6.value !="got") {
       alert("try again for 6");
       document.yesterday.q6.focus();
       document.yesterday.q6.select();
       return false;
}
   if (document.yesterday.q7.value !="brushed") {
       alert("try again for 7");
       document.yesterday.q7.focus();
       document.yesterday.q7.select();
       return false;
}
   if (document.yesterday.q8.value !="went") {
       alert("try again for 8");
       document.yesterday.q8.focus();
       document.yesterday.q8.select();
       return false;
}
   if (document.yesterday.q9.value !="took") {
       alert("try again for 9");
       document.yesterday.q9.focus();
       document.yesterday.q9.select();
       return false;
}
  
   if (document.yesterday.q10.value !="arrived") {
       alert("try again for 10");
       document.yesterday.q10.focus();
       document.yesterday.q10.select();
       return false;
}
   if (document.yesterday.q11.value !="had") {
       alert("try again for 11");
       document.yesterday.q11.focus();
       document.yesterday.q11.select();
       return false;
}
   if (document.yesterday.q12.value !="went") {
       alert("try again for 12");
       document.yesterday.q12.focus();
       document.yesterday.q12.select();
       return false;
}
   if (document.yesterday.q13.value !="had") {
       alert("try again for 13");
       document.yesterday.q13.focus();
       document.yesterday.q13.select();
       return false;
}
  if (document.yesterday.q14.value !="watched") {
       alert("try again for 14");
       document.yesterday.q14.focus();
       document.yesterday.q14.select();
       return false;
}
   if (document.yesterday.q15.value !="went") {
       alert("try again for 15");
       document.yesterday.q15.focus();
       document.yesterday.q15.select();
       return false;
}
   alert("Good work.  All your answers are correct.");
   return true;
}

function answers() {
    NewWin=window.open('answers_yesterday.html','NewWin',
   'toolbar=no,status=no,width=200,height=500');
}