function ampliar_01() {
	ven = open("masinfo.htm","01_default","width=250,height=20,status=no,toolbar=no,menubar=no,scrollbars=no");
}
function ampliar_02() {
	ven = open("agradecimientos.htm","01_default","width=484,height=460,status=no,toolbar=no,menubar=no,scrollbars=yes");
}
function abrir(x,y,z) {
     ven =open(x+".htm","ampliacion","width="+y+",height="+z+",status=no,toolbar=no,menubar=no,scrollbars=no"); 
}
function fecha(){
	var d=new Date();
	var f = d.getFullYear();
		if (f > 2006) {
			ff = "2006-" + f; 
			return ff;
		} else {
			return f;
		}
}

function cerrar() {
     self.close()
}