function mostrarFrame2(){
   var div_frame_v = document.getElementById('div_frame_v');
   var iframe_v = document.getElementById('iframe0_v');
   div_frame_v.style.display = 'block';
   iframe_v.width =  ad_width_v ;
   iframe_v.height = ad_height_v;
   iframe_v.src = source_v;
}