$(document).ready(function() { var submitBtns = $('#submit input[type="submit"]'); if(submitBtns.length > 1){ $('.agree-box').css(); } $('input[name="submitConfirm"]').prop('disabled', true); $('.agree-input input').on('change', function(){ if ($(this).is(':checked')) { $('input[name="submitConfirm"]').prop('disabled', false); } else { $('input[name="submitConfirm"]').prop('disabled', true); } }); $("input[name='zip[data][1]']").keyup(function(e) { AjaxZip3.zip2addr('zip[data][0]','zip[data][1]','address','address'); }); });