把秒转化为多少小时多少分

	        
function fmt(s){
    var h = parseInt(s / 3600, 10);
    var n = parseInt((s - h * 3600) / 60, 10);
    var s = s % 60;
    r = "";
    r = h == 0 ? r : h + "小时";
    r = (n == 0 && s == 0) ? r : r + n + "分";
    r = s ==0 ? r : r + s + "秒";
    return r;
}