var ie = (document.all) ? true : false;
var ns = (document.layers) ? true: false;

function grande(wpagina)
	{
	var ventana=window.open(wpagina,"","width=620,height=570,top=20,left=20" + "fullscreen=yes,scrollbars=2, resizable=1");
	ventana.focus();
	}
function mediana(wpagina)
	{
	var ventana=window.open(wpagina,"","width=620,height=400,top=20,left=20" + "fullscreen=yes,scrollbars=2, resizable=1");
	ventana.focus();
	}
function pequena(wpagina)
	{
	var ventana=window.open(wpagina,"","width=620,height=300,top=20,left=20" + "fullscreen=yes,scrollbars=2, resizable=1");
	ventana.focus();
	}
function popup2(wpagina)
	{
	var ventana=window.open(wpagina,"","width=620,height=230,top=100,left=140" + "fullscreen=yes,scrollbars=2, resizable=1");
	ventana.focus();
	}
function solucion(wpagina)
	{
	var ventana=window.open(wpagina,"","width=620,height=300,top=80,left=140" + "fullscreen=yes,scrollbars=2");
	ventana.focus();
	}
function definicion(wpagina)
	{
	var ventana=window.open(wpagina,"","width=620,height=350,top=140,left=140" + "fullscreen=yes,scrollbars=2");
	ventana.focus();
	}
function reflexion(wpagina)
	{
	var ventana=window.open(wpagina,"","width=620,height=400,top=30,left=80" + "fullscreen=yes,scrollbars=2, resizable=1");
	ventana.focus();
	}
function ejercicio(wpagina)
	{
	var ventana=window.open(wpagina,"","width=620,height=440,top=90,left=140" + "fullscreen=yes,scrollbars=2, resizable=1");
	ventana.focus();
	}
function actividad(wpagina)
	{
	var ventana=window.open(wpagina,"","width=620,height=500,top=40,left=90" + "fullscreen=yes,scrollbars=2, resizable=1");
	ventana.focus();
	}
function datos(wpagina)
	{
	var ventana=window.open(wpagina,"","width=680,height=500,top=40,left=90" + "fullscreen=yes,scrollbars=2, resizable=1");
	ventana.focus();
	}	
function biblio(wpagina)
	{
	var ventana=window.open(wpagina,"","width=620,height=570,top=20,left=20" + "fullscreen=yes,scrollbars=2, resizable=1");
	ventana.focus();
	}
function ejemplo(wpagina)
	{
	var ventana=window.open(wpagina,"","width=620,height=500,top=80,left=90" + "fullscreen=yes,scrollbars=2, resizable=1");
	ventana.focus();
	}
function lectura(wpagina)
	{
	var ventana=window.open(wpagina,"","width=620,height=570,top=20,left=70" + "fullscreen=yes,scrollbars=2, resizable=1");
	ventana.focus();
	}
function casop(wpagina)
	{
	var ventana=window.open(wpagina,"","width=640,height=400,top=40,left=100" + "fullscreen=yes,scrollbars=2, resizable=1");
	ventana.focus();
	}
function casop2(wpagina)
	{
	var ventana=window.open(wpagina,"","width=640,height=650,top=40,left=100" + "fullscreen=yes,scrollbars=2, resizable=1");
	ventana.focus();
	}
function popup(wpagina)
	{
	var ventana=window.open(wpagina,"","width=640,height=310,top=100,left=170" + "ffullscreen=yes,scrollbars=2, resizable=1");
	ventana.focus();
	}

function notapopup(wpagina)
	{
	var ventana=window.open(wpagina,"","width=320,height=310,top=100,left=170" + "ffullscreen=yes,scrollbars=2, resizable=1");
	ventana.focus();
	}
function reflexion(wpagina)
	{
	var ventana=window.open(wpagina,"","width=620,height=420,top=120,left=120" + "ffullscreen=yes,scrollbars=2, resizable=1");
	ventana.focus();
	}