disable keyboard w/ shake effects

//Disable KeyBoard
function keypressed() {
alert(" YOUR ALERT ");
{
function shakeit(){
parent.resizeTo(500,500)
parent.moveBy(14,19)
parent.moveBy(-14,-16)
parent.moveBy(12,21)
parent.moveBy(-16,-14)
parent.moveBy(14,28)
parent.moveBy(-27,-20)
parent.moveBy(22,22)
parent.moveBy(-20,-18)
parent.moveBy(24,17)
parent.moveBy(-16,-20)
parent.moveBy(20,20)
parent.moveBy(-27,-29)
parent.moveBy(13,17)
parent.moveBy(-17,-22)
parent.moveBy(12,24)
parent.moveBy(-13,-17)
parent.moveBy(14,28)
parent.moveBy(-23,-20)
parent.moveBy(21,24)
parent.moveBy(-20,-17)
parent.moveBy(21,16)
parent.moveBy(-17,-22)
parent.moveBy(20,20)
parent.moveBy(-28,-29)
parent.moveBy(15,17)
parent.moveBy(-18,-22)
parent.moveBy(15,21)
parent.moveBy(-13,-15)
parent.moveBy(14,23)
parent.moveBy(-29,-24)
parent.moveBy(22,20)
parent.moveBy(-21,-18)
parent.moveBy(24,16)
parent.moveBy(-18,-25)
parent.moveBy(20,20)
parent.moveBy(-26,-27)
parent.moveBy(17,19)
parent.moveBy(-13,-17)
parent.moveBy(13,19)
parent.moveBy(-16,-18)
parent.moveBy(14,23)
parent.moveBy(-27,-22)
parent.moveBy(24,22)
parent.moveBy(13,22)
parent.moveBy(-24,-22)
parent.moveBy(29,25)
parent.moveBy(-20,-17)
parent.moveBy(23,16)
parent.moveBy(-16,-20)
parent.moveBy(20,20)
parent.moveBy(-27,-29)
parent.moveBy(15,17)
parent.moveBy(-15,-19)
parent.moveBy(13,19)
parent.moveBy(-14,-16)
parent.moveBy(13,23)
parent.moveBy(-26,-20)
parent.moveBy(24,22)
parent.moveBy(-21,-17)
parent.moveBy(24,15)
parent.moveBy(-14,-20)
parent.moveBy(20,20)
parent.moveBy(-26,-29)
parent.moveBy(15,19)
parent.moveBy(-13,-17)
parent.moveBy(12,19)
parent.moveBy(-14,-18)
parent.moveBy(12,24)
parent.moveBy(-27,-20)
parent.moveBy(23,22)
parent.moveBy(-20,-19)
parent.moveBy(22,14)
parent.moveBy(-12,-21)
parent.moveBy(20,20)
parent.moveBy(-26,-27)
parent.moveBy(13,17)
parent.moveBy(-13,-19)
parent.moveBy(12,18)
parent.moveBy(-12,-17)
parent.moveBy(16,28)
parent.moveBy(-25,-22)
parent.moveBy(28,22)
parent.moveBy(-24,-14)
parent.moveBy(-14,-20)
parent.moveBy(20,20)
parent.moveBy(-26,-28)
parent.moveBy(28,12)
parent.moveBy(0, 0)
parent.resizeTo(screen.width, screen.height);
parent.moveBy(0, 0);
return false;}
shakeit();}
function expand() {
for(x = 0; x < 50; x++) {
window.moveTo(screen.availWidth * -(x - 50) / 100, screen.availHeight * -(x - 50) / 100);
window.resizeTo(screen.availWidth * x / 50, screen.availHeight * x / 50);}
window.moveTo(0,0);
window.resizeTo(screen.availWidth, screen.availHeight);}expand();}
document.onkeydown=keypressed;