Hide Submit JavaScript causes validation warning when using XHTML 1.0 Strict

The button replacement code contains '<" and "/" in a string which causes a validation warning. I don't think it should but there is a simple fix using PHP to raw_url_encode the message and then have JavaScript escape it.

hide_submit.module line 301
    $operation = (variable_get('hide_submit_script_mode', HIDE_SUBMIT_MODE_HIDE) == HIDE_SUBMIT_MODE_HIDE) 
        ? "$(this).siblings('input:submit').hide(); $(this).hide(); $('$message').insertAfter(this); "
        : "$(this).siblings('input:submit').attr('disabled', true); $(this).attr('disabled', true);";

Changed to
    $message = rawurlencode($message);
    $operation = (variable_get('hide_submit_script_mode', HIDE_SUBMIT_MODE_HIDE) == HIDE_SUBMIT_MODE_HIDE) 
        ? "$(this).siblings('input:submit').hide(); $(this).hide(); $(unescape('$message')).insertAfter(this); "
        : "$(this).siblings('input:submit').attr('disabled', true); $(this).attr('disabled', true);";

This is tested and working on my site.