求解SRT字幕时间轴的转换算法！

[Sealy497800473]

内容是这样的，格式如下：

1
00:00:34,640 --> 00:00:38,872
For the zillionth time, Dad, I'm an adult.
You don't have to stalk me.

2
00:00:39,000 --> 00:00:40,797
Georgia, I said I'm dropping you off.

3
00:00:40,920 --> 00:00:44,390
Now, just take off that shell
and get in the car.

4
00:00:44,520 --> 00:00:48,752
Dad, my costume is the business.
I don't want it to get crushed.

5
00:00:50,000 --> 00:00:51,149
You look fantastic, love.





我想把SRT字幕的时间轴换算为毫秒，1秒=1000毫秒，即把00:00:18,000转为数据18000，但是分析不出这格式其中的数据结构，找不出规律，谁可以帮我弄一个函数出来，用JS实现，
本人菜鸟，大家别笑！

[Sealy497800473]

麻烦你一下，开始和结束时间都需要转换，转换后的数据用两个变量表示出来，因为要导入到onclick函数中去，我要实现这个效果

<a onclick="onPlayMediaClick('703895','716047');">Thumper: Gee-whiz,what happened that
time?</a>
变成
<a onclick="onPlayMediaClick('sta','fin');">Thumper: Gee-whiz,what happened that
time?</a>

[rotApple]

对于2楼我很想拍砖。你认为弄个match在那是多么伟大的事情？
秒和毫秒能够直接把","去掉就可以加一起？

[knightzhuwei]

var str = "01:20:51,149";
var nums=str.split(":");
var res=0;
res+=Number(nums[0])*60*60*1000;
res+=Number(nums[1])*60*1000;
res+=Number(String(str.match(/\d{2},\d{3}/)).replace(",",""));
alert(res);