<!-- TWO STEPS TO INSTALL CODE: 1. Paste the coding into the HEAD of your HTML document 2. Add the last code into the BODY of your HTML document --> <!-- STEP ONE: Copy this code into the HEAD of your HTML document --> <script LANGUAGE="JavaScript"> <!-- Beginfunction shake(n) {if (self.moveBy) {for (i = 10; i > 0; i--) {for (j = n; j > 0; j--) {self.moveBy(0,i);self.moveBy(i,0);self.moveBy(0,-i);self.moveBy(-i,0); } } }}// End --> </script> <!-- STEP TWO: นำโค๊ดส่วนนี้ไปวางตรงไหนก็ได้ตามที่คุณต้องการ --> <form> <input type=button onClick="shake(7)" value="ลองกดดูสิครับ"> </form>