时间加减后求小时和分钟数，且对格式要求为两位数，不足的补0

function time_hour(v1){
var d=new Date("2011/11/11 00:00:00");
d.setMinutes(d.getMinutes()+v1);
var hours=d.getHours();
if (hours<10)hours="0"+hours;
return hours;
}
function time_Min(v1){
var d=new Date("2011/11/11 00:00:00");
d.setMinutes(d.getMinutes()+v1);
var minu=d.getMinutes();
if(minu<10)minu="0"+minu;
return minu;
}