Scroll to element inside modal window

User found solution but doesn't appear to have added it, so for the sake of completeness, here it is

$( document ).ready(function() {
        setTimeout(function() {
            var $el = $("#<?php echo $_GET['loc'];?>")
            var elpos = $el.position();

            $('.modal-body').animate({
                scrollTop: elpos.top
            }, 1000);

        },500);
    });