how to access iFrame parent page using jquery?

I have an iframe and in order to access parent element I implemented following code:

window.parent.document.getElementById('parentPrice').innerHTML

How to get the same result using jquery?
UPDATE: Or how to access iFrame parent page using jquery?

To find in the parent of the iFrame use:

$('#parentPrice', window.parent.document).html();

The second parameter for the $() wrapper is the context in which to search. This defaults to document.

how to access iFrame parent page using jquery

window.parent.document.

jQuery is a library on top of JavaScript, not a complete replacement for it. You don't have to replace every last JavaScript expression with something involving $.

If you need to find the jQuery instance in the parent document (e.g., to call an utility function provided by a plug-in) use one of these syntaxes:

• window.parent.$
• window.parent.jQuery

Example:

window.parent.$.modal.close();

jQuery gets attached to the window object and that's what window.parent is.

You can access elements of parent window from within an iframe by using window.parent like this:

// using jquery    
window.parent.$("#element_id");

Which is the same as:

// pure javascript
window.parent.document.getElementById("element_id");

And if you have more than one nested iframes and you want to access the topmost iframe, then you can use window.top like this:

// using jquery
window.top.$("#element_id");

Which is the same as:

// pure javascript
window.top.document.getElementById("element_id");

in parent window put :

<script>
function ifDoneChildFrame(val)
{
   $('#parentPrice').html(val);
}
</script>

and in iframe src file put :

<script>window.parent.ifDoneChildFrame('Your value here');</script>