在前端对用户提交的密码进行MD5加密的实现方法
<html>
<head>
<script src=""></script>
<script>
function md5passwd(){
passwd = document.getElementById("password").value;
document.getElementById("password").value = hex_md5(passwd);
return true;
}
</script>
</head>
<form action="" method="post" onsubmit="return md5passwd()">
<input type="text" name="username" id="username">
<input type="password" name="password" id="password" value="">
<input type="submit" id="submit" name="submit">
</form>