function validateValues() {
    for (var i=1,j=28; i<=j; i++) {
		var thisButChkd = "FALSE";
		for (var tb=0;tb < eval('document.forms.initTest.q' +i+'.length'); tb++ )
		{
			if (eval('document.forms.initTest.q' +i+'['+tb+'].checked'))
			{
				thisButChkd = "TRUE";
				break;
			}
		}
		if (thisButChkd == "FALSE")
		{
			alert('Not all the questions have been answered. \n\nYou must answer all the questions in order to proceed. \n\nPlease commence by answering question ' +i+'.');
			return false;
		}
    }
return true;
}