function showtime() {


                   var now = new Date();
                   now.setTime(now.getTime()-1800000*2);
                   var hours1 = now.getHours();

                   var minutes = now.getMinutes();
                   var seconds = now.getSeconds();

                   now.setTime(now.getTime()+1800000*2);
                   var hours2 = now.getHours();

                   now.setTime(now.getTime()+1800000*3);
                   var hours3 = now.getHours();



                   var timeValue1 = ((hours1 < 10) ? "0" : "") + hours1;
                   timeValue1  += ((minutes < 10) ? ":0" : ":") + minutes;
                   // timeValue1  += ((seconds < 10) ? ":0" : ":") + seconds;

                   var timeValue2 = ((hours2 < 10) ? "0" : "") + hours2;
                   timeValue2  += ((minutes < 10) ? ":0" : ":") + minutes;
                 //  timeValue2  += ((seconds < 10) ? ":0" : ":") + seconds;


                   var timeValue3 = ((hours3 < 10) ? "0" : "") + hours3;
                   timeValue3  += ((minutes < 10) ? ":0" : ":") + minutes;
                  // timeValue3  += ((seconds < 10) ? ":0" : ":") + seconds;

                   document.getElementById("clock1").innerHTML = timeValue1;
                   document.getElementById("clock2").innerHTML = timeValue2;
                   document.getElementById("clock3").innerHTML = timeValue3;




                   setTimeout("showtime()",10000);
                }
                showtime();

function open_calendar() {window.open('css/calendar/index.php', 'newWin', 'Toolbar=0, Location=0, Directories=0, Status=0, Menubar=0, Scrollbar=0, Resizable=1, Copyhistory=0, Width=530, Height=450');   }