function setCookie(c_name,value,expiredays)
{
var exdate=new Date();
exdate.setDate(exdate.getDate()+expiredays);
document.cookie=c_name+ "=" +escape(value)+((expiredays==null) ? "" : "; expires="+exdate.toGMTString());
}

function getCookie(c_name)
{
if (document.cookie.length>0)
  {
  c_start=document.cookie.indexOf(c_name + "=");
  if (c_start!=-1)
    { 
    c_start=c_start + c_name.length+1 ;
    c_end=document.cookie.indexOf(";",c_start);
    if (c_end==-1) c_end=document.cookie.length
    return unescape(document.cookie.substring(c_start,c_end));
    } 
  }
return ""
}

function cok() {
document.cookie = 'username=; expires=Thu, 01-Jan-70 00:00:01 GMT;';
document.cookie = 'password=; expires=Thu, 01-Jan-70 00:00:01 GMT;';
} 
function addcookie(){
    if (document.getElementById("checkbox_login").checked==true){//alert("a");
    setCookie ( "username", document.getElementById("Right1_txtTaiKhoan").value, 365 );
    setCookie ( "password",document.getElementById("Right1_txtMatKhau").value, 365 );
    }
    else{
        cok();
    }   
}
//window.onload=settxt;
function settxt(){
    x = getCookie ( "username" );
    y = getCookie ( "password" );
    if(x==null || x==""){        
    }
    else{        
        document.getElementById("Right1_txtTaiKhoan").value=x;
        document.getElementById("Right1_txtMatKhau").value=y;
    }
}