You can use jQuery to your advantage here. Instead of splitting the HTML up on a string, use jQuery to select the element you want. This will give you the element that contains the data you need:

    $('center font')

Should return:

    [<font color="#000000">113
		  Non-digested Members of nupic:</font>], 
    <font color="#000000">69 Digested
		  Members of nupic:</font>]