function show_actual(n)	{
     var idecka = new Array(1,2,3,4,5);
      if(document.getElementById('act_' + n).style.display=="none") {
	     document.getElementById('act_' + n).style.display="block";
	     for (i=1;i<=idecka.length;i++) {
	      if(n != i) {
	      document.getElementById('act_' + i).style.display="none";
	     }
	    }
     }
    }