var image_url = new Array();
      
      image_url[0] = new Image();
      image_url[0].src = "/fileadmin/images/categories/home_education.jpg";
      image_url[1] = new Image();
      image_url[1].src = "/fileadmin/images/categories/home_healthcare.jpg";
      image_url[2] = new Image();
      image_url[2].src = "/fileadmin/images/categories/home_roads.jpg";
      image_url[3] = new Image();
      image_url[3].src = "/fileadmin/images/categories/home_airports.jpg";
      image_url[4] = new Image();
      image_url[4].src = "/fileadmin/images/categories/home_infrastructure.jpg";
      image_url[5] = new Image();
      image_url[5].src = "/fileadmin/images/categories/home_international.jpg";