function ampliar_01() {
	//ven = open("busqueda.htm","01_default","width=600,height=450,status=no,toolbar=no,menubar=no,scrollbars=no");
	ven = open("base_de_datos/busqueda.asp","BD1_default","width=600,height=450,status=no,toolbar=no,menubar=no,scrollbars=yes");
}

function ampliar_02() {
	ven = open("agradecimientos.htm","01_default","width=675,height=450,status=no,toolbar=no,menubar=no,scrollbars=yes");
}
function ampliar_03() {
	ven = open("bibliografia.htm","01_default","width=570,height=450,status=no,toolbar=no,menubar=no,scrollbars=yes");
}
function ampliar_04() {
	ven = open("./ilustraciones/ilustraciones01.htm","01_default","width=645,height=490,status=no,toolbar=no,menubar=no,scrollbars=yes");
}

function abrir(x) {
     ven =open(x+".htm","ampliacion","width=655,height=530,status=no,toolbar=no,menubar=no,scrollbars=yes"); 
}
function IdObra(enlace) {
	ven = open("base_de_datos/FichaObra.asp?"+enlace,"BD2_default","width=600,height=450,status=no,toolbar=no,menubar=no,scrollbars=yes");
	ven.focus();
}
function fecha(){
	var d=new Date();
	var f = d.getFullYear();
		if (f > 2005) {
			ff = "2005-" + f; 
			return ff;
		} else {
			return f;
		}
}

function cerrar() {
     self.close()
}