修改后的prototype.js增加进度条和验证输入框

【 tulaoshi.com - Web开发 】

使用示例
script type="text/javascript" src="../scripts/prototype.js"/script
script type="text/javascript"
var progressBar;
/**//*
* 功能：admin登录
*/
function UserLogin()
{
   
    //验证页面控件
    var checkform = new CheckForm();
    if(!checkform.checkForm(document.getElementById(''formLogin''))) return false;   
       
    //开始提交数据
    progressBar = new ProgressBar();
    progressBar.SetStatus("正在发送数据到服务器.");
   
    var url = "../admin.do";
    var pars = "action=Login&username=" + $F(''username'') + "&password=" + $F(''password'') + "&rnd=" +$F(''rnd'');
    var myAjax = new Ajax.Request(
    url,
    {method: ''post'', parameters: pars, onComplete: UserLogin_CallBack}
    );
}
/**//*
* 功能：admin登录 - CallBack
*/
function UserLogin_CallBack(originalRequest)
{
  var objXml = originalRequest.responseXML;
  //alert(originalRequest.responseTEXT);
  try
  {
    if(objXml.getElementsByTagName("return")[0].firstChild.nodeValue == "true")
    {
      progressBar.isNeedConfirmButton = false;
      progressBar.isNeedProgressBar = true;
      progressBar.SetStatus("img src=''../images/error.gif'' align=''absmiddle'' 登录成功，正在载入，请稍候..");

      //login success
      location.href=''admin_index.htm'';
    }
    else
    {
      progressBar.isNeedConfirmButton = true;
      progressBar.isNeedProgressBar = false;
      progressBar.focusItem = "username";
      progressBar.SetStatus("img src=''../images/error.gif'' align=''absmiddle'' 对不起，登录失败！" + objXml.getElementsByTagName("msg")[0].firstChild.nodeValue);

      $(''btnOK'').disabled = false;
    }
  }
    catch(err)
    {
      progressBar.isNeedConfirmButton = true;
      progressBar.isNeedProgressBar = false;
      progressBar.focusItem = "username";
      progressBar.SetStatus("img src=''../images/error.gif'' align=''absmiddle'' 对不起，登录失败！" + err.message);

      $(''btnOK'').disabled = false;
    }
  }
/script

table width="100%" border="0" cellpadding="3" cellspacing="0"
              tr
                td colspan="3" height="30"/td
              /tr
              tr
                td width="21%"用户名:/td
                td colspan="2"
                  input type="text" tabindex="1" id="username" name="username" chname="用户名" notempty="true" size="20" style="width:180px;" //td
              /tr
              tr
                td密　码:/td
                td colspan="2"input type="password" tabindex="2" id="password" name="password" chname="密码" notempty="true" size="20" style="width:180px;" //td
              /tr
              tr
                td验证码:/td
                td colspan="2"
                  input type="text" style="width:120px;" id="rnd" tabindex="3" chname="验证码" class="input_1" notempty="true" onKeyUp="value=value.replace(/[^d]/g,'''')"/
                  img alt="验证码" src="../rnd.do？type=admin_rnd" border="0" usemap="absmiddle"//td
              /tr             
                tr
                  td class="white" /td
                  td width="22%"input type="submit" Class="input_1" id="btnOK" value="登 录" tabindex="4"/td
                    td width="57%"input type="reset" Class="input_1" value="重 置"/td
                /tr
                tr
                  td colspan="3" height="2"/td
                /tr
                tr
                  td colspan="3"/td
                /tr
        /table