function show_desc(top_id) {
   for (cnt=0;cnt<3;cnt++) {
       var clanok_image = document.getElementById('image_' + cnt);
       var top_clanky_row = document.getElementById('top_clanky_row_' + cnt);
       var topcube = document.getElementById('topcube' + cnt);
       if (top_id == cnt) {
    			 clanok_image.style.display = 'block';
       		 top_clanky_row.style.display = 'block';
      		 topcube.src = '/images/design/submenu_cube.jpg';
			 } else {
    			 clanok_image.style.display='none';
      		 top_clanky_row.style.display = 'none';
      		 topcube.src = '/images/design/menu_cube.jpg';
			 } 
   }
   
}