function angel() 
{ 
window.open('http://www.mexicocity.com.mx/sanange.html','mywindow','toolbar=yes, location=yes,directories=yes,status=yes,menubar=yes,scrollbars=yes,copyhistory=yes, resizable=yes'); 
}

function ocd() 
{ 
window.open('http://www.ocd.pcn.net./index_es.htm','mywindow','toolbar=yes, location=yes,directories=yes,status=yes,menubar=yes,scrollbars=yes,copyhistory=yes, resizable=yes'); 
}

function ilam() 
{ 
window.open('http://www.ilam.org/mx/mexi_right.html','mywindow','toolbar=yes, location=yes,directories=yes,status=yes,menubar=yes,scrollbars=yes,copyhistory=yes, resizable=yes'); 
}

function museos() 
{ 
window.open('http://icom.museum/vlmp/latin-america.html','mywindow','toolbar=yes, location=yes,directories=yes,status=yes,menubar=yes,scrollbars=yes,copyhistory=yes, resizable=yes'); 
}