function abreproducto(web)

{

  var al = screen.height - 140
 
  alto = al

  ancho = 666

  izq = 100

  arr = 15



  popupWin = window.open(web, "_blank", "scrollbars=yes,width=" + ancho + ",height=" + alto + ",top=" + arr + ",left=" + izq + ", resizable=yes")



}



function ventana_custom(web,ancho,alto)

{

    

  izq = 100

  arr = 120



  popupWin = window.open(web, "_blank", "scrollbars=yes,width=" + ancho + ",height=" + alto + ",top=" + arr + ",left=" + izq)



}