shake

function shake(n) {

if (window.top.moveBy) {

for (i = 10; i > 0; i--) {

for (j = n; j > 0; j--) {

window.top.moveBy(0,i);

window.top.moveBy(i,0);

window.top.moveBy(0,-i);

window.top.moveBy(-i,0);

} } }