jQuery: Find current path, and wrap in em's

current.jquery.js

$.fn.markCurrentLocation = function() {
   var path = window.location.href
   return this.each(function(){
      var self = $(this);
      var href = self.attr('href');
      if(RegExp(href).test(path)){
         self
            .wrap('<em></em>')
      }
   })
};