<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml" lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <title>需要接受协议才可以进行下一步</title> <script type="text/javascript" src="js/jquery-1.8.3.min.js"></script> <script type="text/javascript"> $(function() { $("#selectMe").click(function() { var obj = $("#next").get(0); obj.disabled = !$("#selectMe")[0].checked; }); }); </script> </head> <body> <form action="index.html"> <input type="checkbox" id="selectMe" />请接受协议 <input type="submit" id="next" value="下一步" disabled="disabled" /> </form> </body></html>