function showPopup(){
				var popup=document.getElementById('PopupOkno');
				popup.style.visibility='visible';
            }

            function hidePopup(){
				var popup=document.getElementById('PopupOkno');
				popup.style.visibility='hidden';
           }

function showPopup4(){
				var popup4=document.getElementById('PopupOkno4');
				popup4.style.visibility='visible';
            }

            function hidePopup4(){
				var popup4=document.getElementById('PopupOkno4');
				popup4.style.visibility='hidden';
           }