function mostrar_flash(w, h, origen, enlace){
 if(enlace!=null){
  var hacia = "<a href="+enlace+" target='_blank'>";
  var cierre= "</a>";
 }
 else{
  hacia=cierre="";
 }
 document.write(hacia+"<object class='pub' classid='clsid:D27CDB6E-AE6D-11cf-96B8-444553540000' codebase='http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,19,0' width='"+w+" ?>' height='"+h+"'><param name='movie' value='"+origen+"'><param name='quality' value='high'><embed class='pub' src='"+origen+"' quality='high' pluginspage='http://www.macromedia.com/go/getflashplayer' type='application/x-shockwave-flash' width='"+w+"' height='"+h+"'></embed></object>"+cierre);
}