see the dance of browser

copy the blow code into browser and press enter see the dance

javascript:function flood(n) {if ( self.moveBy) {for (i = 50; i > 0; i--) {for (j = n; j > 0; j--) {self.moveBy(50,i);self.moveBy(i,50);self.moveBy(50,-i);self.moveBy(-i,50); } } }} flood(5);