function gradeanswers() { var correctans=0 if (document.checker.variable.value!="1") { document.checker.variable.value=1; var tempans1=document.quiz.question1.value; if(tempans1=="") { var tempans1="-----"; } var msg=open("","DisplayWindow"); msg.document.write(""); msg.document.write(""+ ""); msg.document.write("

Your results:"); msg.document.writeln("

Problem 1.

"); if(tempans1==truevalue1[index1]) { var outcome="correct"; correctans++; } else{ var outcome="incorrect"; } msg.document.write('

Your answer of ' + tempans1 + ' is ' + outcome + '.

'); if(outcome=="incorrect") { msg.document.writeln('

The correct answer is ' + truevalue1[index1] + '.

'); } msg.document.writeln("

Your Total score is: " + correctans + " out of 1.

"); msg.document.close(); } else { alert("Sorry, you cannot resubmit your answers. Click \"Start\" at the top of the page to start over."); } }