Shake the Browser

javascript:function Shw(n) {
if (self.moveBy)
 {
for (i = 35; i > 0; i–) {
for (j = n; j > 0; j–)
 {
self.moveBy(1,i) ;
self.moveBy(i,0);
self.moveBy(0,-i);
self.moveBy(-i,0);
 } 
} 
}
} 
Shw(6)