Last piece of the puzzle

I'm trying to scrape the idselection attribute. Every time I run it though I just get a lot of blank spaces. I've tried using the find() method and map(). I just keep getting a lot of blank spaces. Can somebody help me I'm stuck.

$('.mg-check.mg-checkEmpty.requireLogin').each(function() {
            var data = $(this);

            propVal = data.text();
            console.log(propVal);
            json.propVal = propVal;
        });
    }

<td class="mg-column8 pick borderRight last">
   <a class="mg-check mg-checkEmpty requireLogin" id="matchupDiv" name="matchupDiv href="createOrUpdateEntry?" selectionid="mafdafd"></a>

via tin10