/*var north = true;
var backImg = ['images/side_fall.gif','images/side_fall.gif','images/side_spring.gif','images/side_spring.gif'];
var today = new Date();
var month = today.getMonth();


document.getElementById('side-season').style.backgroundImage = 'url('+backImg[Math.floor((month+(north?6:0))/3)%4]+')';
*/
      var today = new Date();
      var month = today.getMonth();
      var day = today.getDate();
      var season ='images/side_spring.gif';

      var today = new Date();
      var month = today.getMonth();
      var day = today.getDate();
      var season;
 			  if ((month >= 1) && (month < 5 && day < 15)) season = 'images/side_spring.gif';
 		      if ((month >= 5 && day >= 15) && (month <= 7 && day <= 15)) season = 'images/side_summer.gif';
 		      if ((month > 6 && day > 15) && (month <= 12)) season = 'images/side_fall.gif';
		
      document.getElementById('side-season').style.backgroundImage = 'url('+ season +')';