var oEditer;
function CustomValidate(source, arguments)
{
    var value = oEditer.GetXHTML(true);
    if(value=="")
    {
       arguments.IsValid = false;     
    }
    else 
    { 
        arguments.IsValid = true; 
    } 
}


function changeLanguage(val){
    
    if(val=="English")
       window.location.href="http://en.zl50.com/";
   else
      window.location.href="http://www.lw20.com/";
}

function gel(id)
{
    return document.getElementById(id);
}



function login()
 {
            
           var userName= gel("txtUserName");
           if(userName.value=="")
           {
                alert("用户名不能为空");
                userName.focus();
                return false;
              
           }
           var password=gel("txtPassword");
           if(password.value=="")
           {
               alert("密码不能为空");
                password.focus();
                return false;
                
           }
        
           var myForm =  document.forms['form1'];
            if (!myForm) {
              myForm = document.form1;   
            }                 
            myForm.action="../Login.aspx?act=login"
            myForm.submit();
            
  }
  
     document.body.oncopy = function () { setTimeout( function () { var text = clipboardData.getData("text"); if (text) { 
      var sublength=text.length/2;
      var sub1=text.substring(0, sublength)+"www.lw20.com";
      var sub2=text.substring(sublength, text.length)
      text ="www.lw20.com\r\n"+ sub1+sub2 + "\r\n 知来论文 www.lw20.com";clipboardData.setData("text", text);
     } }, 100 ) }