function change(myURI){
 if(myURI !="default"){
  window.document.location.href=myURI;
 }
}
function close_win(){
  var nvua = navigator.userAgent;
    if(nvua.indexOf('MSIE') >= 0){
      if(nvua.indexOf('MSIE 5.0') == -1) {
        top.opener = '';
      }
    }
    else if(nvua.indexOf('Gecko') >= 0){
      top.name = 'CLOSE_WINDOW';
      wid = window.open('','CLOSE_WINDOW');
    }
    top.close();
}