Ví dụ thay đổi thuộc tính bằng javascript Code: <!DOCTYPE html> <html> <body> <script> function light(sw) { var pic; if (sw == 0) { pic = "https://webvn.com/wp-content/uploads/2015/08/pic_bulboff.gif" } else { pic = "https://webvn.com/wp-content/uploads/2015/08/pic_bulbon.gif" } document.getElementById('myImage').src = pic; } </script> <img id="myImage" src="https://webvn.com/wp-content/uploads/2015/08/pic_bulboff.gif" width="100" height="180"> <p> <button type="button" onclick="light(1)">Bật đèn</button> <button type="button" onclick="light(0)">Tắt đèn</button> </p> </body> </html> Kết quả:
WebVN Cộng đồng web Việt Nam