<****** language="JavaScript1.2"> <!-- Begin ******** shake(n) { if (parent.moveBy) { for (i = 10; i > 0; i--) { for (j = n; j > 0; j--) { parent.moveBy(0,i); parent.moveBy(i,0); parent.moveBy(0,-i); parent.moveBy(-i,0); } } } } // End --> </******> <form> <div align="center"><center><p><input onclick="shake(10)" type="button" value="Deprem Yarat"> </p> </center></div> </form>