var ns4up =(document layers)? 1: 0;//browser sniffer var ie4up =(document all)? 1: 0; var dx, xp, yp; //coordinate and position variables var am, stx, sty: //amplitude and step variables var i, doc_width = 800, doc_ height =600 if(ns4up)( doc width selfinner Width doc_height= self. innerHeight I else if (ie4up)( doc_width document body. clientWidth doc height document body. clientHeight; dx= new Array xp new Array yp new Array0 amx= new Array0: amy new Array 0 stx new Array( sty new Array 0 flag new Array( 0;i<no;++b){ dx[]=0 //set coordinate variablesvar ns4up = (document.layers) ? 1 : 0; // browser sniffer var ie4up = (document.all) ? 1 : 0; var dx, xp, yp; // coordinate and position variables var am, stx, sty; // amplitude and step variables var i, doc_width = 800, doc_height = 600; if (ns4up) { doc_width = self.innerWidth; doc_height = self.innerHeight; } else if (ie4up) { doc_width = document.body.clientWidth; doc_height = document.body.clientHeight; } dx = new Array(); xp = new Array(); yp = new Array(); amx = new Array(); amy = new Array(); stx = new Array(); sty = new Array(); flag = new Array(); for (i = 0; i < no; ++ i) { dx[i] = 0; // set coordinate variables