$('#AHYSChk01').click(function() { if $('#AHYSChk01').attr('checked') { $('#YSElig01').show(); } else { $('#YSElig01').hide(); } )}>I've had issues with .is(:checked) not working. The fallback is $("#CheckBoxId").attr('checked').
>> div id = "YSElig<<ch>>" style="display:none"> >> input type="radio" name="py_SpElig_Type<<ch>>" value="SP" <<iif(lnPY_EligType=1,"checked","")>>/><b>AHYS SUB+Spouse</b> >> input type="radio" name="py_SpElig_Type<<ch>>" value="SUB" <<iif(lnPY_EligType=2,"checked","")>>/><b>AHYS SUB Only</b> >> div> >>>>
>>>> script type="text/JavaScript" Language = "JavaScript"> >>>> $('#AHYSChk01').click(function() >>>> { >>>> if ($'#AHYSChk01').is(:checked)) >>>> { $('#YSElig01').show(); >>>> } >>>> else >>>> { $('#YSElig01').hide(); >>>> } >>>> } >>>> >>>> /script> >>>>>>>>where AHYSChknn is the div id for the radiobuttons and AHYSChknn is the checkbox id