Hello, I got this question from the Qualtrics library and I am trying to customize it. I have been able to change the years but not been able to limit the months. I only want to show January, September, October, November, and December. Could someone help with customizing the code? ! Qualtrics.SurveyEngine.addOnload(function() { //Set years you would like to have available var yearFirst = 2019; //Min 2019 var yearLast = 2020; //Max 2020 //This all remains unchanged var qid=this.questionId; var mo=document.getElementsByName('QR~'+qid+'#1~1')[0]; var day=document.getElementsByName('QR~'+qid+'#2~1')[0]; var yr=document.getElementsByName('QR~'+qid+'#3~1')[0]; var j = yearLast-1898; for(i=j;i<151;i++){ yr.remove(j); } for(i=1;i<=yearFirst-1900;i++){ yr.remove(1); } function fixer() { day.options[29].disabled=0; day.options[30].disabled=0; day.options[31].disabled=0; if(mo.selectedIndex==2||mo.selectedIndex==4||mo.selectedIndex==6||mo.selectedIndex==9||mo.selectedIndex==11) { day.options[31].disabled=1; if(day.selectedIndex==31){day.selectedIndex=30}; if(mo.selectedIndex==2) { day.options[30].disabled=1; if(day.selectedIndex==30){day.selectedIndex=29}; if(parseInt(yr.options[yr.selectedIndex].innerHTML,10)%4!=0) { day.options[29].disabled=1; if(day.selectedIndex==29){day.selectedIndex=28}; } else { day.options[29].disabled=0; } } } } yr.onchange=function(){fixer();}; mo.onchange=function(){fixer();}; });