How to put screen reader focus on colorbox popup with jQuery? -

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for 508 purposes, need screen readers focus go color box popup. how can jquery?

i need know code can put on on load of page make focus go colorbox when user clicks on link , opens.

i put class on link within colorbox popup content , added tpl

 <script>   (function($) {   $(document).ready(function() {   $('a.colorbox-load').click(function(event) {    $(".colorbox-link").focus();    })     })   })(jquery); </script>

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