javascript - JQuery Commands Breaking Each Other -

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i have code produce form based on selection. 

$(document).ready(function(){     $('#dealerform').hide();     $('#customerform').hide();     $('#select').change(function(){         $('#dealerform,#customerform').hide();         $($(this).find('option:selected').attr('value')).show();     }); });  $(document).ready(function(){     $("input[name='emailquest']").change(function(){     if (this.value != "1") { // <----i change this.checked         $("input[name='email']").prop("disabled", true);     } else {         $("input[name='email']").prop("disabled", false);     }     }); });

well have added code try add datepicker code , breaks previous code , serves whole thing @ once , datepicker doesnt' work. know im doing wrong here , have possible datepicker solution?

$(function(){     $("#datepicker").datepicker(); });

thanks

it not necessary wrap each code bock in new $(document.ready().

this:

$(document).ready(function(){     $('#dealerform').hide();     $('#customerform').hide();     $('#select').change(function(){         $('#dealerform,#customerform').hide();         $($(this).find('option:selected').attr('value')).show();     }); });  $(document).ready(function(){     $("input[name='emailquest']").change(function(){     if (this.value != "1") { // <----i change this.checked         $("input[name='email']").prop("disabled", true);     } else {         $("input[name='email']").prop("disabled", false);     }     }); });                      $(function(){     $("#datepicker").datepicker(); });

can written this:

$(function() {     //  first block of code     $('#dealerform').hide();     $('#customerform').hide();     $('#select').change(function(){         $('#dealerform,#customerform').hide();         $($(this).find('option:selected').attr('value')).show();     });      // second block of code     $("input[name='emailquest']").change(function(){         if (this.value != "1") { // <----i change this.checked             $("input[name='email']").prop("disabled", true);         }         else {             $("input[name='email']").prop("disabled", false);         }     });      // last piece     $("#datepicker").datepicker(); })

remember, if using both jquery , jqueryui (datepicker jqueryui), must reference both libraries, this:

<html>     <head>         <link rel="stylesheet" href="//ajax.googleapis.com/ajax/libs/jqueryui/1.10.3/themes/smoothness/jquery-ui.min.css" type="text/css" media="all" />          <script src="//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>         <script src="//ajax.googleapis.com/ajax/libs/jqueryui/1.10.3/jquery-ui.min.js"></script>          <script type="text/javascript">             $(function() {                 //  first block of code                 $('#dealerform').hide();                 $('#customerform').hide();                 $('#select').change(function(){                     $('#dealerform,#customerform').hide();                     $($(this).find('option:selected').attr('value')).show();                 });                  // second block of code                 $("input[name='emailquest']").change(function(){                     if (this.value != "1") { // <----i change this.checked                         $("input[name='email']").prop("disabled", true);                     }                     else {                         $("input[name='email']").prop("disabled", false);                     }                 });                  // last piece                 $("#datepicker").datepicker();             })         </script>     </head>

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