$(document).ready(function(){
  $('#to_let_slide_button').click(function(){
    if($('#to_let_slide').css('display') == 'none'){
      $('#to_let_slide').show();
      $('#to_let_slide_button').css('background-image','url(/templates/hatfield_plaza/images/buttons/to_let_hide.png)');
    }
    else{
      $('#to_let_slide').hide();
      $('#to_let_slide_button').css('background-image','url(/templates/hatfield_plaza/images/buttons/to_let.png)');
    }
  })
});