js时间格式转换为几天前几小时几分钟等

// 时间转换函数
	getDateDiff : function(dateTimeStamp){
		dateTimeStamp = dateTimeStamp.replace(/-/g,"/");
		dateTimeStamp = new Date(dateTimeStamp).getTime();
		var minute = 1000 * 60,hour = minute * 60,day = hour * 24,halfamonth = day * 15,month = day * 30,year = month * 12,now = new Date().getTime(),diffValue = now - dateTimeStamp;
		if(diffValue < 0){
		 //若日期不符则弹出窗口告之
		 //alert("结束日期不能小于开始日期！");
		 }
		var yearC = diffValue/year,monthC =diffValue/month,weekC =diffValue/(7*day),dayC =diffValue/day, hourC =diffValue/hour,minC =diffValue/minute;
		if(yearC>=1){
			result=parseInt(yearC) + "年前";
		}else if(monthC>=1){
		 	result=parseInt(monthC) + "个月前";
		}else if(weekC>=1){
		 	result=parseInt(weekC) + "周前";
		}else if(dayC>=1){
		 	result=parseInt(dayC) +"天前";
		}else if(hourC>=1){
		 	result=parseInt(hourC) +"个小时前";
		}else if(minC>=1){
		 	result=parseInt(minC) +"分钟前";
		}else{
			result="刚刚";
		}
		return result;
	}

跟微博，发表于几分钟，几小时前，几天前，等等。直接传入字符串格式 如：2014-08-09 10:09:10，与当前时间对比。