STRING MATCHING AND REPLACING IN JAVASCRIPT 1.2
http://developer.netscape.com/viewsource/angus_strings.html
及通过.prototype扩展Javascript的功能.
http://www.javascriptkit.com/javatutors/proto4.shtml
To see a world in a grain of sand.
And a heaven in a wild flower
Hold infinity in the palm of your hand.
And eternity in an hour
一花一世界
一沙一天堂
掌中握无限
霎那成永恒
