1 //登陆密码输入控制：非空

 2 //账号 必须五位

 3 function sLoginPwCtrl(obj){

 4

 5     var sloginPw = document.getElementById("SuppwCtrl").value;//获得密码输入框中的值

 6     var superAcc = document.getElementById("SupAccCtrl").value;//获得账号输入框中的值

 7

 8     //情况1，用户不输入账号，那么让提交按钮失效并返回一个提示到lable标签

 9     if( superAcc == null || superAcc == "" || superAcc == undefined ){

10         document.getElementById('sloginSub').disabled = true;

11         document.getElementById('sloginlable1').innerHTML = "请输入账户";

12         sLoginPwCtrl(this);

13     }

14     //情况2，用户输入账号位数步符合要求，那么让提交按钮失效并返回一个提示到lable标签

15     else if( superAcc.length != 5 ){

16         document.getElementById('sloginSub').disabled = true;

17         document.getElementById('sloginlable1').innerHTML = "账户非法";

18         sLoginPwCtrl(this);

19     }

20     //情况3，用户输入步输入密码，那么让提交按钮失效并返回一个提示到lable标签

21     else if( sloginPw == null || sloginPw == "" || sloginPw == undefined ){

22         document.getElementById('sloginSub').disabled = true;

23         document.getElementById('sloginlable2').innerHTML = "请输入密码";

24         sLoginPwCtrl(this);

25     }

26     //排除不合法操作后的其他操作，按钮有效，并清其操作留下的提醒

27     else{

28         document.getElementById('sloginSub').disabled = false;

29         document.getElementById('sloginlable').innerHTML = "";

30     }

31

32 }

 1 <!--仅仅能输入8位数字的输入控制-->

 2 function check(obj){

 3     var maxChars = 8;

 4     if(isNaN(obj.value)){

 5         document.getElementById('kahaolable').innerHTML = "*卡号只能是数字";

 6         document.getElementById('sub').disabled = true;

 7     }

 8     else if(obj.value.length != maxChars){

 9         document.getElementById('kahaolable').innerHTML = "*卡号应为8位数字";

10         document.getElementById('sub').disabled = true;

11     }

12     else{

13         document.getElementById('sub').disabled = false;

14          document.getElementById('kahaolable').innerHTML = "";

15          var inputValue = document.getElementById("demo1").value;

16          obj.value = inputValue;

17     }

18 } 

 1 //修改密码控制

 2 function upPswIn(obj){

 3

 4     var myvalue1 = document.getElementById("upYuan").value;

 5     var myvalue2 = document.getElementById("upNew1").value;

 6     var myvalue3 = document.getElementById("upNew2").value;

 7

 8     if( myvalue1 == null || myvalue1 == "" ){

 9         document.getElementById('upPwSub').disabled = true;

10         document.getElementById('upLable1').innerHTML = "请正确输入原密码";

11         upPswIn(this);

12     }

13     else if( myvalue2 == null || myvalue2 == "" || myvalue2 == undefined ){

14         document.getElementById('upPwSub').disabled = true;

15         document.getElementById('upLable1').innerHTML = "";

16         document.getElementById('upLable2').innerHTML = "请输入新密码";

17         upPswIn(this)

18     }

19     else if( myvalue3 == null || myvalue3 == "" || myvalue3 == undefined ){

20         document.getElementById('upPwSub').disabled = true;

21         document.getElementById('upLable1').innerHTML = "";

22         document.getElementById('upLable2').innerHTML = "";

23         document.getElementById('upLable3').innerHTML = "请再次输入新密码";

24         upPswIn(this)

25     }

26     else

27     if( myvalue2 != myvalue3){

28         document.getElementById('upPwSub').disabled = true;

29         document.getElementById('upLable2').innerHTML = "两次密码不一致";

30         upPswIn(this)

31     }

32     else{

33         document.getElementById('upPwSub').disabled = false;

34         document.getElementById('upLable1').innerHTML = "";

35         document.getElementById('upLable2').innerHTML = "";

36         document.getElementById('upLable3').innerHTML = "";

37     }

38

39 }