$(document).ready(function(){
  
  // Adds _blank target to elements with rel=external, satisfies xhtml compliancy
  $('[rel=external]').click(function(){
    this.target = "_blank";
  });
  
  $('.datepicker').datepicker({
    dateFormat      : 'yy/mm/dd', 
    buttonImage     : "../images/calendar.gif",
    buttonImageOnly : true, 
    defaultDate     : +1
  });
  
})