var so = new SWFObject("main.swf","mymovie",

var so = new SWFObject("main.swf","mymovie",
var so = new SWFObject("main.swf","mymovie","100%","100%","8","#000000");
so.addParam("menu","false");
so.addParam("scale","noscale");
so.addParam("allowFullScreen","true");
so.write("flash");
so = new SWFObject("main.swf","mymovie","100%","100%","8","#000000");”这句话的含义