Word Count Function Preventing Permalink Editing

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This code counts the number of words in an excerpt and adds it to the excerpt meta box in the post edit screen: http://snippi.com/s/sn3hk5p

However, something about this code is preventing the editing of permalinks in the post edit screen and I am unable to identify the problem. Any ideas?

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  1. I put the script in a external file

    // Excerpt word count
function excerpt_count_js(){
    wp_enqueue_script( 'excerpt-word-count', plugins_url( 'excerpt_word_count.js', __FILE__ ), array( 'jquery' ), false, true );
}

    And modified the script a bit

    jQuery(document).ready(
    function($){
        $("#postexcerpt .handlediv")
        .after("<div style="position:absolute;top:2px;right:5px;color:#666;"><small>Excerpt length: </small><input type="text" value="0" maxlength="3" size="3" id="excerpt_counter" readonly="" style="background:#fff;"> <small>word(s).</small></div>");

        $("#excerpt_counter").val($("#excerpt").val().split(/S+b[s,.'-:;]*/).length - 1);

        $("#excerpt").keyup(
            function() {
                $("#excerpt_counter").val( $("#excerpt").val().split(/S+b[s,.'-:;]*/).length - 1);
            }
        );
    }
);

    Finally change the hook for loading the script

    add_action( 'load-post.php', 'excerpt_count_js');
add_action( 'load-post-new.php', 'excerpt_count_js');

    No problems at all.

    Just to clearify: with ‘permalinks’, did you mean the permlink of the post (the line between title input and content input) ?

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