function ampliar_01() {
	ven = open("agradecimientos.htm","02_default","width=500,height=350,status=no,toolbar=no,menubar=no,scrollbars=yes");
}

function expo() {
	ven = open("exposicion.htm","exposicion","width=770,height=542,top=0,left=0,screenX=0,screenY=0,status=no,toolbar=no,menubar=no,scrollbars=no");
}

function intro() {
	ven = open("introduccion.htm","exposicion","width=760,height=387,top=0,left=0,screenX=0,screenY=0,status=no,toolbar=no,menubar=no,scrollbars=yes");
}

function epilogo() {
	ven = open("epilogo.htm","exposicion","width=760,height=387,top=0,left=0,screenX=0,screenY=0,status=no,toolbar=no,menubar=no,scrollbars=yes");
}

function cerrar() {
	parent.close();
}
function abrir_aud(x,y,z,t) {
     if (navigator.appName == 'Netscape') {
     	y = 20 + y;
     	z = 20 + z;
     	ven = open(x+".htm",x,"width="+y+",height="+z+",status=no,toolbar=no,menubar=no,scrollbars="+t);
     } else {
     	ven = open(x+".htm",x,"width="+y+",height="+z+",status=no,toolbar=no,menubar=no,scrollbars="+t);
     }
}