function cv (enlace) {
	ven = open(enlace,"02_default","width=550,height=450,status=no,toolbar=no,menubar=no,scrollbars=yes");
	ven.focus();
}

function abrir(x,y,z) {
     ven =open(x+".htm","ampliacion","width="+y+",height="+z+",status=no,toolbar=no,menubar=no,scrollbars=yes"); 
}

function fecha(){
	var d=new Date();
	var f = d.getFullYear();
		if (f > 2007) {
			ff = "2007-" + f; 
			return ff;
		} else {
			return f;
		}
}

function cerrar() {
     self.close()
}