javascript - Update parent value every time iframe reloads with iframe value -


i have page iframe , want update value in parent each time iframe loads form submit in iframe. code in parent :

<div id="updfield" style="display: block; float: left; margin: 12px 0px 0px 20px; width: 300px; font-size: 14px; color: #cc0000;">    test update field </div>

this jquery in iframe:

$(window).on('load', function() {     $("#updfield", window.parent.document).text("<?php echo $dupdate; ?>"); });

when first time iframe loads, parent div changes show value of $dupdate. if submit form in iframe changes $dupdate value, parent div not update. want parent div update each time iframe loads. assistance appreciated.

update:

ok, here's full, working code. sorry errors earlier. same idea. parent keeps track of child load events , reaches in , gets value want div somewhere.

two files: blah.html , childblah.html.

blah.html

<html> <head> <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script> <script>     $(document).ready(function() {         $("#myframe").on("load", function () {     var infocontainer = $("#myframe").contents().find("#somediv");     if (infocontainer!=null)        $("#updfield").text(infocontainer.text());         });         });  </script>  </head> <body>     <iframe id="myframe" src="childblah.html" > </iframe>     <div id="updfield">     </div> </body> </html>

childblah.html

<html> <head> </head> <body onload="settimeout(function(){document.location.href='childblah.html';},3000)">     <div id="somediv">         xxxxxxx<div id='dv' />         <script>var dt=new date();document.getelementbyid('dv').innerhtml=dt;</script>     </div> </body> </html>

you can content specified location if exists instead of having child write value.


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