function CargarFoto(img, ancho, alto,texto)
{
  derecha=(screen.width-ancho)/2;
  arriba=(screen.height-alto)/2;
  string="toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0, directories=0,width="+ancho+",height="+alto+",left="+derecha+",top="+arriba+"";
  fin=window.open(img,"",string);
}

function AbrirVentana(a)
{  
  string="toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=600,height=600, left=0, top=0";
  fin=window.open(a,"",string);
}

function AbrirVentanas(a)
{ 
  string="toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=600,height=500,left=0, top=0";
  fin=window.open(a,"",string);
}


function cerrar(){ 
var ventana = window.self; 
ventana.opener = window.self; 
ventana.close(); 
} 

function imprSelec(nombre)
{
  var ficha = document.getElementById(nombre);
  var ventimp = window.open(' ', 'popimpr');
  ventimp.document.write( ficha.innerHTML );
  ventimp.document.close();
  ventimp.print( );
  ventimp.close();
}