直接上代码:
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>验证是否勾选协议</title> </head> <body> <input type="checkbox" id="ch_box" onclick="c_box()" />是否同意 <a href="xieyi.html" target="_blank">公司协议</a> <br /> <input type="submit" id="sub" value="提交注册" disabled="disabled" /> <input type="reset" id="rst" value="重新填写" onclick="sub_return()" /> </body> </html> <script> // 协议 校验 function c_box(){ var c_b = document.getElementById("ch_box"); var c_sub = document.getElementById("sub"); if(c_b.checked){ c_sub.disabled=false; }else{ c_sub.disabled=true; } } </script>