javascript - JQuery change event only fire when the page is not fully loaded and fail to fire when page is fully loaded -

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my webpage uses quite number of jquery scripts, pre-populating location field based on input in state input field , using some of alert ensure on change event fires. noticed event fires while web page loading , not after page loaded.

this url's : http://mmarket.vas2nets.com/request.php , http://mmarket.vas2nets.com/register.php

am guessing there confliction in scripts, appreciated.

note: please not mind long script, it's enable through @ it.

<head> //load jquery script , test function.     <script src='http://code.jquery.com/jquery-latest.min.js'></script>  <script type='text/javascript'> $(document).ready(function(){   $("div.span3 #state").change(function(){   var data = $("div.span3 #state").serialize(); alert(data);    $.ajax({         url  : 'populatelocation.php',        type : 'post',        data : data,        success:function(data){                 $('#location').html(data)                }     })      });  });  </script>   </head> <body>   <div id="wrapper"> <section class="container"> <div class="dynamiccontent">  <div class="inner"> <div class="row"> <div class="span8 offset2"> <header> <h2>provider's registration</h2> </header> <div> <div> <div class="outside"> <div class=""> <div>  <div class="row"> <div class="span3  offset1"> <dl class="dl-horizontal"> <dt>m</dt> <dd> <p>m-market</p> <p><a href="#" class="btn btn-link">more<span></span></a></p> </dd>  </dl> </div> <div class="span3">  <form name="register" id="register" method="post" class="form_login" action=""> <label name="username">name</label> <input type="text" name="name" id="name"/> <label name="phone">mobile number</label> <input type="text" onfocus="if(this.value =='2348xxxxxxxx' )  this.value=''"     onblur="if(this.value=='')  this.value='2348xxxxxxxx'"  value="2348xxxxxxxx" name="phone"/> <label name="password">password</label> <input type="password" name="password" id="password"/> <label name="password2">retype password</label> <input type="password" name="password2" id="password2"/> <label>service</label> <select name="provider" id="provider"> <option value="">select service</option> <?php echo $service_fields; ?> </select> <label>state</label> <select  id ="state" name="state"> <option value='0'>--- select state------</option> <?php echo $state_fields; ?> </select></div> <label>location</label>enter code here <select id='location'> </select>

use $(window).load() rather $(document).ready() components require page loaded.

it's reasonable this:

$(window).load(function() {    // code requires page loaded  });  $(document).ready(function() {    // other code  });

$(window).load() waits elements including images, while $(document).ready() waits basic dom elements.


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