jQuery.fn.extend({
   numbersToImages: function(){
       return this.each(function(i) {
           var stryear = $(this).text();
           var stryearimg = "";
           for (i = 0; i < stryear.length; i++) {
               stryearimg += '<img src="/SimplerWebb/Images/' + stryear.charAt(i) + '.gif" alt="' + stryear + '" />';
           }
           $(this).html(stryearimg);
       });
   }
});