$(document).ready(function() {
	$('.homeButton,.agendaButton,.sessionsButton,.speakersButton,.sponsorsButton,.registerButton,.twitterButton, .facebookButton, .linkedinButton, .addthisButton, .regButtonGlow, .enterButtonGlow, .downloadProgramGuide, .computerButtonGlow').append('<span class="hover"></span>').each(function () {
	  var $span = $('> span.hover', this).css('opacity', 0);
	  $(this).hover(function () {
	    $span.stop().fadeTo(300, 1);
	  }, function () {
	    $span.stop().fadeTo(500, 0);
	  });
	});
	
});