自己整理的一个javascript日期处理函数

/* 
* 函数名称: DateUtil 
* 作 者: yithcn 
* 功能说明: 日期函数 
* 使用说明: 
* 创建日期: 2010.10.14 
*/ 
var DateUtil = {}; 
DateUtil.base = 60 * 60 * 24 * 1000; 
DateUtil.Add = function(num, sDate) { 
num = num || 0; 
sDate = sDate || new Date(); 
var base = this.base * num; 
var todayMs = sDate.getTime(); 
todayMs += base; 
sDate.setTime(todayMs); 
var m = (sDate.getMonth() + 1); 
m = m < 10 ? "0" + m : m; 
var d = sDate.getDate(); 
d = d < 10 ? "0" + d : d; 
var y = sDate.getFullYear(); 
return m + "/" + d + "/" + y; 
}; 
DateUtil.Diff = function(sDate, eDate, mode) { 
if (typeof sDate == "string") 
sDate = new Date(sDate); 
if (typeof eDate == "string") 
eDate = new Date(eDate); 
sDate = sDate || new Date(); 
eDate = eDate || new Date(); 
try { 
sDate.getYear(); 
} catch (e) { 
return (0); 
} 
var result = Math.abs(eDate - sDate); 
switch (mode) { 
case "y": 
result /= this.base * 365; 
break; 
case "m": 
result /= this.base * 365 / 12; 
break; 
case "w": 
result /= this.base * 7; 
break; 
default: 
result /= this.base; 
break; 
} 
return (Math.floor(result)); 
}; 
DateUtil.Time = function(hasSec) { 
var date = new Date(); 
return date.getHours() + ":" + date.getMinutes() + (hasSec ? ":" + date.getSeconds() : ""); 
}; 
DateUtil.TimeSplit = function(hasSec) { 
var date = new Date(); 
return { Hour: date.getHours(), Minute: date.getMinutes(), Second: (hasSec ? ":" + date.getSeconds() : "") }; 
};