Js图片上下滚动代码，参数设置丰富，滚动的区域、 要滚动的内容、单独一行滚动内容的高度（程序中通过过的要滚动行的一个节点的offsetHeight获得）、整个滚动内容的高度、复制滚动内容（程序中使用复制scrollMsg.innerHTML来获得的）、滚动的值、滚动高度、暂停滚动、滚动计时器、 (默认)滚动的时间间隔2秒等。-Js picture up and down scrolling code, parameter setting rich, rolling area, to scroll the contents of a single line scrolling content height (offsetHeight program by a node over the line to get rolling), the height of the entire contents of the scroll, copy, scroll contents (used in the program to get the copy scrollMsg.innerHTML), scroll value, scroll height, pause scrolling, scrolling timer (by default) to scroll interval 2 seconds and so on.