function validate1() {
 
  if (document.prespercontneg.q1.value !="I haven't been growing vegetables for a while.") {
      alert("try again for 1");
      document.prespercontneg.q1.focus();
      document.prespercontneg.q1.select();
      return false;
 }
    
   alert("Your answer is correct.");
   document.prespercontneg.q2.focus();
   return true;
}

function validate2() {
 
  if (document.prespercontneg.q2.value !="You haven't been walking very much lately.") {
      alert("try again for 2");
      document.prespercontneg.q2.focus();
      document.prespercontneg.q2.select();
      return false;
 }
    
   alert("Your answer is correct.");
   document.prespercontneg.q3.focus();
   return true;
}

function validate3() {
 
  if (document.prespercontneg.q3.value !="She hasn't been coming home early.") {
      alert("try again for 3");
      document.prespercontneg.q3.focus();
      document.prespercontneg.q3.select();
      return false;
 }
    
   alert("Your answer is correct.");
   document.prespercontneg.q4.focus();
   return true;
}

function validate4() {
 
  if (document.prespercontneg.q4.value !="The clock hasn't been working since last year.") {
      alert("try again for 4");
      document.prespercontneg.q4.focus();
      document.prespercontneg.q4.select();
      return false;
 }
    
   alert("Your answer is correct.");
   document.prespercontneg.q5.focus();
   return true;
}

function validate5() {
 
  if (document.prespercontneg.q5.value !="Tina hasn't been teaching English all year.") {
      alert("try again for 5");
      document.prespercontneg.q5.focus();
      document.prespercontneg.q5.select();
      return false;
 }
    
   alert("Your answer is correct.");
   document.prespercontneg.q6.focus();
   return true;
}


function validate6() {
 
  if (document.prespercontneg.q6.value !="They haven't been living in Sydney since 1995.") {
      alert("try again for 6");
      document.prespercontneg.q6.focus();
      document.prespercontneg.q6.select();
      return false;
 }
    
   alert("Your answer is correct.");
   document.prespercontneg.q7.focus();
   return true;
}

function validate7() {
 
  if (document.prespercontneg.q7.value !="We haven't been going to the new swimming pool.") {
      alert("try again for 7");
      document.prespercontneg.q7.focus();
      document.prespercontneg.q7.select();
      return false;
 }
    
   alert("Your answer is correct.");
   document.prespercontneg.q8.focus();
   return true;
}

function validate8() {
 
  if (document.prespercontneg.q8.value !="He hasn't been exercising regularly.") {
      alert("try again for 8");
      document.prespercontneg.q8.focus();
      document.prespercontneg.q8.select();
      return false;
 }
    
   alert("Your answer is correct.");
   document.prespercontneg.q9.focus();
   return true;
}

function validate9() {
 
  if (document.prespercontneg.q9.value !="You haven't been reading much recently.") {
      alert("try again for 9");
      document.prespercontneg.q9.focus();
      document.prespercontneg.q9.select();
      return false;
 }
    
   alert("Your answer is correct.");
   document.prespercontneg.q10.focus();
   return true;
}

function validate10() {
 
  if (document.prespercontneg.q10.value !="They haven't been meeting in secret.") {
      alert("try again for 10");
      document.prespercontneg.q10.focus();
      document.prespercontneg.q10.select();
      return false;
 }
    
   alert("Your answer is correct.");
   return true;
}

function answers() {
    NewWin=window.open('answers_pres_per_cont_neg.html','NewWin',
   'toolbar=no,status=no,width=340,height=500');
}