function bibliografia(enlace) {
	ven = open(enlace,"01_default","width=350,height=250,status=no,toolbar=no,menubar=no,scrollbars=yes");
	ven.focus();
}

function libris(enlace) {
	ven = open(enlace,"libris_default","width=350,height=250,status=no,toolbar=no,menubar=no,scrollbars=yes");
	ven.focus();
}

function nota(enlace) {
	ven = open(enlace,"02_default","width=300,height=250,status=no,toolbar=no,menubar=no,scrollbars=yes");
	ven.focus();
}
function nota_cap(enlace) {
	ven = open(enlace,"03_default","width=300,height=250,status=no,toolbar=no,menubar=no,scrollbars=yes");
	ven.focus();
}
function ampliar_01() {
	ven = open("obras.htm","01_default","width=400,height=320,status=no,toolbar=no,menubar=no,scrollbars=yes");
}
function ampliar_02() {
	ven = open("agradecimientos.htm","01_default","width=450,height=450,status=no,toolbar=no,menubar=no,scrollbars=yes");
}

function cerrar() {
     self.close();
}

function guevara(x) {
     ven = open(x+"guevara.htm","guevara","width=500,height=420,status=no,toolbar=no,menubar=no,scrollbars=yes");
}

function abrir(x,y,z,t) {
if (navigator.appName == 'Netscape') {
y = 20 + y;
z = 20 + z;
ven =
open(x,"ampliacion","width="+y+",height="+z+",status=no,toolbar=no,menubar=no,screenX=200,screenY=0,resizable=yes,scrollbars="+t);
} else {
ven =
open(x,"ampliacion","width="+y+",height="+z+",status=no,toolbar=no,menubar=no,top=0,left=200,scrollbars="+t);
}
}

var a = 2002;