JS date对象的减法处理实现代码

var time1="2010-11-01 10:12:12"; 
var time2="2010-11-01 11:12:12"; 

var t1=new Date(time1.replace(/-/g, '/')); 
var t2=new Date(time2.replace(/-/g, '/')); 

alert((t2-t1).toString()=="3600000"?"yes":"no");