javascript页面上使用动态时间具体实现_javascript技巧

//页面上动态时间
function time() {
var dt;
var date = new Date();
dt = date.getFullYear()
+ "/"
+ date.getMonth()
+ "/"
+ date.getDate()
+ " "
+ (date.getHours() <= 9 ? '0' + date.getHours() : date
.getHours())
+ ":"
+ ((date.getMinutes() <= 9 ? '0' + date.getMinutes() : date
.getMinutes()))
+ ":"
+ (date.getSeconds() <= 9 ? '0' + date.getSeconds() : date
.getSeconds());
//document.getElementById("ht").innerHTML=dt;
return dt;
}
setInterval("document.getElementById('ht').innerHTML=time()", 1000);