阻止浏览器密码自动填充

<input autocomplete="off" id="username" type="text" name="username" placeholder="请输入用户名" required="" >
<input id="password" type="text" name="password" placeholder="请输入密码" required="" >

<script>
$("#password").focus(function(){
				if(this.value.length>0){
					this.type = "password";
				}
				else{
					this.type = "text";
				}
			});
			$("#password").keyup(function(){
				if(this.value.length>0){
					this.type = "password";
				}
				else{
					this.type = "text";
				}
			}); 
</script>

1.经测试，谷歌，火狐下都通过测试，保存的密码不会填充进去。