Question

I have this iFrame in my parent window…

<iFrame src="http://theirdomain.com" id="Post_iFrame"></iFrame>

Then I have the jquery script…

$(document).ready(function(){  
   $(document).on("click","#transfer",function() {

      var $currentIFrame = $('#Post_iFrame');
      $currentIFrame.contents().find("body #Name1").val("My new value");

   });
});

I am trying to find the text field #Name1 in the iframe and populate this input with My new value but nothing is happening. Any suggestions?

Answer 1

Following your comment:

no its a different domain

You need to have a look at Same Origin Policy:

In computing, the same origin policy
is an important security concept for a
number of browser-side programming
languages, such as JavaScript. The
policy permits scripts running on
pages originating from the same site
to access each other’s methods and
properties with no specific
restrictions, but prevents access to
most methods and properties across
pages on different sites.

For you to be able to get data, it has to be:

Same protocol and host

You need to implement JSONP to workaround it.