这个登陆窗口是双登陆窗口的，对IE8及早期版本不支持，可以根据自己的开发语言更换，我这个是asp的，其中的引用文件可以在网络上自行下载，如找不到可以留下邮箱~！
关键代码如下所示：
<!DOCTYPE html><html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>scm登陆界面</title><style type="text/css">body {background-color: #999;}</style><link rel="stylesheet" href="../bootstrap335/css/bootstrap.min.css"><link rel="stylesheet" href="../bootstrap335/css/bootstrapValidator.min.css"><script src="../bootstrap335/js/jquery-2.1.4.min.js"></script><script src="../bootstrap335/js/bootstrap.min.js"></script><script src="../bootstrap335/js/bootstrapValidator.min.js"></script><% Response.Buffer = True Response.ExpiresAbsolute = Now() - 1 Response.Expires = 0 Response.CacheControl = "no-cache" %></head><body ><!--<nav role="navigation"><div><div><a ui-sref=".">******系统 (ver 1.0.0 beta)</a></div><div id="navbar-ex1-collapse"><ul><li><a href="http://www.my80s.cc" target="_blank">80s ©2015-2010</a></li></ul></div> </div></nav>--><div><div style="margin-top:5em;"><h2>******管理系统</h2></div></div><div ><div style="margin-top:3em;" ><ul id="myTab"><li><a href="#Prv" data-toggle="tab">供应商登陆</a></li><li><a href="#CPrv" data-toggle="tab">生产商登陆</a></li></ul><div id="myTabContent"> <div id="Prv"><div ><h3>供应商登陆</h3></div><div><form name="LoginG" id="LoginG" action="Admin_ChkLogin_G.asp" method="post" target="_parent" ><div><div><span>账号</span><input name="Username" type="text" placeholder="Username" ><!--<span id="UsernameMessage" /> --></div><br /></div><!-- /form-group--><div><div><span>密码</span><input name="Password" type="Password" placeholder="Password"><!--<span id="PasswordMessage" /> --></div> </div><!-- /form-group--> <h5>请将如下计算结果填入文本框内：</h5><div><label id="captchaOperation"></label><div><input type="text" name="captcha" /></div></div><br /><br /> <br /> <div><input type="submit" value="登 录" /></div></form></div><!-- /panel-body --></div><!-- tab-pane fade in active--><div id="CPrv"><div><h3>生产商登陆</h3></div><div> <form name="LoginS" id="LoginS" action="Admin_ChkLogin_S.asp" method="post" target="_parent" ><div><div><span>账号</span><input name="Username2" type="text" placeholder="Username" ><!--<span id="UsernameMessage" /> --></div><br /></div><!-- /form-group--><div><div><span>密码</span><input name="Password2" type="Password" placeholder="Password"><!--<span id="PasswordMessage" /> --></div> </div><!-- /form-group--> <h5>请将如下计算结果填入文本框内：</h5><div><label id="captchaOperation2"></label><div><input type="text" name="captcha2" /></div></div><br /><br /> <br /> <div><input type="submit" value="登 录" /></div></form></div><!-- /panel-body --></div><!-- tab-pane fade--> </div><!--myTabContent--></div><script type="text/javascript">$(document).ready(function() {// Generate a simple captchafunction randomNumber(min, max) {return Math.floor(Math.random() * (max - min + 1) + min);};function generateCaptcha() {$('#captchaOperation').html([randomNumber(1, 50), '+', randomNumber(1, 50), '='].join(' '));};generateCaptcha();$('#LoginG').bootstrapValidator({//message: 'This value is not valid',feedbackIcons: {valid: 'glyphicon glyphicon-ok',invalid: 'glyphicon glyphicon-remove',validating: 'glyphicon glyphicon-refresh'},fields: {Username: {message: 'The username is not valid',validators: {notEmpty: {message: '供货商账户不能为空'},stringLength: {min: 5,max: 10,message: '供货商账号长度 5-10'},/*remote: {url: 'remote.php',message: 'The username is not available'},*/regexp: {regexp: /^[a-zA-Z0-9_/.]+$/,message: '只接受数字和字母 '}}},Password: {validators: {notEmpty: {message: '密码不能为空'}}},captcha: {validators: {callback: {message: '验证码错误',callback: function(value, validator) {var items = $('#captchaOperation').html().split(' '), sum = parseInt(items[0]) + parseInt(items[2]);return value == sum;}}}}}}).on('error.form.bv', function(e) {var $form = $(e.target),bootstrapValidator = $form.data('bootstrapValidator');if (!bootstrapValidator.isValidField('captcha')) {// The captcha is not valid// Regenerate the captchagenerateCaptcha();}});});</script><script type="text/javascript">$(document).ready(function() {// Generate a simple captchafunction randomNumber(min, max) {return Math.floor(Math.random() * (max - min + 1) + min);};function generateCaptcha() {$('#captchaOperation2').html([randomNumber(1, 50), '+', randomNumber(1, 50), '='].join(' '));};generateCaptcha();$('#LoginS').bootstrapValidator({//message: 'This value is not valid',feedbackIcons: {valid: 'glyphicon glyphicon-ok',invalid: 'glyphicon glyphicon-remove',validating: 'glyphicon glyphicon-refresh'},fields: {Username2: {message: 'The username is not valid',validators: {notEmpty: {message: '供货商账户不能为空'},stringLength: {min: 5,max: 10,message: '供货商账号长度 5-10'},/*remote: {url: 'remote.php',message: 'The username is not available'},*/regexp: {regexp: /^[a-zA-Z0-9_/.]+$/,message: '只接受数字和字母 '}}},Password2: {validators: {notEmpty: {message: '密码不能为空'}}},captcha2: {validators: {callback: {message: '验证码错误',callback: function(value, validator) {var items = $('#captchaOperation2').html().split(' '), sum = parseInt(items[0]) + parseInt(items[2]);return value == sum;}}}}}}).on('error.form.bv', function(e) {var $form = $(e.target),bootstrapValidator = $form.data('bootstrapValidator');if (!bootstrapValidator.isValidField('captcha')) {// The captcha is not valid// Regenerate the captchagenerateCaptcha();}});});</script></body></html>