function tick() { var hours, minutes, seconds, xfile; var intHours, intMinutes, intSeconds; var today; today = new Date(); intHours = today.getHours(); intMinutes = today.getMinutes(); intSeconds = today.getSeconds(); if (intHours == 0) { hours = "0:"; xfile = " "; } else if (intHours < 12) { hours = intHours+":"; xfile = " "; } else if (intHours == 12) { hours = "12:"; xfile = " "; } else if (intHours < 24) { hours = intHours+":"; xfile = " "; } if (intMinutes < 10) { minutes = "0"+intMinutes+":"; } else { minutes = intMinutes+":"; } if (intSeconds < 10) { seconds = "0"+intSeconds+" "; } else { seconds = intSeconds+" "; } timeString = xfile+hours+minutes+seconds; clock.innerHTML = timeString; window.setTimeout("tick();", 100); } if (document.all){ window.attachEvent('onload',tick)//对于IE } else{ window.addEventListener('load',tick,false);//对于FireFox }