document.forms[0].teachMe.disabled=false;
	document.forms[0].showMe.disabled=false;
	document.forms[0].indi.disabled=false;

	
	document.forms[0].checkMe.disabled=true;
	document.forms[0].quizMe.disabled=false;
	document.forms[0].endQuiz.disabled=true;
	document.forms[0].certTest.disabled=false;
	document.forms[0].smartTest.disabled=false;



	document.forms[0].currScore.value = '';
	document.forms[0].message.value = '';
	document.forms[0].speedQuizMe.disabled=false;


	for (var k=0; k<numOfSigs; k++) {	// scan and uncheck radio buttons

		document.forms[0].signalName[k].checked = false;

		}