js to include in a hocr file to make it easier to see the document regions recognized

hocr.js

$( document ).ready(function() {
    var bbox_re = /bbox (\d+) (\d+) (\d+) (\d+)/i;
    var posr = function(i) {
	var t = $(this).attr('title');
	var result = t.match(bbox_re);
	if ( result ) {
	    var top = result[2] / 3;
	    var left = result[1] / 3;
	    var bottom = result[4] / 3;
	    var right = result[3] / 3;

	    $(this).offset({top: top, left: left});
	    $(this).outerWidth( right - left );
	    $(this).outerHeight( bottom - top );
	}
    };
    
    $('.ocr_page').each(posr);
    $('.ocr_carea').each(posr);
    $('.ocr_par').each(posr);
    $('.ocr_line').each(posr);
    $('.ocrx_word').each(posr);
});