$(function(){
  $(window).resize(function(){
    var main_holder = $("#main_holder");
    var margintop = (($(window).height() - main_holder.height()) / 3);
    if (margintop < 0)
      margintop = 0;
    main_holder.css({'margin-top':
     margintop + "px"
    });
  });
  $(window).resize();
});

$.setupLayout = function(type){

  var speed = 400;

  switch(type){

    case "home":
      $("#content_holder").slideUp(speed);
      $("#bar").animate({'margin-top': '225px'});
//      $("#content_holder").animate({'height': '236px'});
      $("#content_holder").animate({'height': '0px'});
      $("#block_homeblock_welkomswoord").show();
      $("#block_homeblock_english").hide();
      $("#hometext").show();
      $(".submenu").hide();
      $("#main_holder #top_holder #provada_button").show();
      $("#mainmenu")
        .find(".topselected,.selected")
        .removeClass("topselected selected")

      break;

    case "english":
      $("#content_holder").slideUp(speed);
      $("#bar").animate({'margin-top': '225px'});
      $("#content_holder").animate({'height': '236px'});
      $("#block_homeblock_welkomswoord").hide();
      $("#block_homeblock_english").show();
      $("#hometext").show();
      $(".submenu").hide();
      $("#main_holder #top_holder #provada_button").show();
      $("#mainmenu")
        .find(".topselected,.selected")
        .removeClass("topselected selected")

      break;

    case "content":
      $("#content_holder").slideDown(speed);
      $("#bar").animate({'margin-top': '102px'});
      $("#content_holder").animate({'height': '359px'});
      $("#hometext").hide();
      $("#main_holder #top_holder #provada_button").hide();
      break;

    case "cases":
      $("#content_holder").slideDown(speed);
      $("#bar").animate({'margin-top': '192px'});
      $("#content_holder").animate({'height': '269px'});
      $("#hometext").hide();
      $("#main_holder #top_holder #provada_button").hide();
      break;

  }
};