function clears() {
document.getElementById('txt_UserName').value = '';
document.getElementById('txt_password').value = '';
document.getElementById('text_code').value = '';
}
    function onfocus(){
       // document.getElementById('txt_UserName').focus();
      //if(1==1){
       // window.open ('AD/AD.htm','newwindow') 
     //  }
        
    }