function abrir(pagina)
{vimagen=window.open(pagina,"vimagen","width=490, height=356, top=150, left=150,toolbar=no, location=no,directories=no,status=no,menubar=no,scrollbars=yes,copyhistory=no,resizable=no");
vimagen.focus();}
function abrir2(pagina)
{vimagen=window.open(pagina,"vimagen","width=580, height=480, top=150, left=150,toolbar=no, location=no,directories=no,status=no,menubar=no,scrollbars=yes,copyhistory=no,resizable=no");
vimagen.focus();}
function abrir3(pagina)
{vimagen=window.open(pagina,"vimagen","width=300, height=180, top=150, left=150,toolbar=no, location=no,directories=no,status=no,menubar=no,scrollbars=no,copyhistory=no,resizable=no");
vimagen.focus();}