function openWin(pag,nomVentana, ancho, alto, posx, posy, propiedades) {
	//si left y top llegan en blanco, hay que centrarlo
	
	if (posx== 99) {
		//calculo de las coordenadas para centrar el popup
		//gets top and left positions based on user's resolution so hint window is centered.
		posx = (window.screen.width/2) - (ancho/2 + 10); //half the screen width minus half the new window width (plus 5 pixel borders).
	}

	if (posy == 99)	{
		//calculo de las coordenadas para centrar el popup
		//gets top and left positions based on user's resolution so hint window is centered.
		posy = (window.screen.height/2) - (alto/2 + 30); //half the screen height minus half the new window height (plus title and status bars).
	}

	stringCaracteristicas=""
	stringCaracteristicas += "width=" + ancho 
	stringCaracteristicas += " ,height=" + alto
	stringCaracteristicas += propiedades
	stringCaracteristicas += " ,left=" + posx
	stringCaracteristicas += " ,top=" + posy
	stringCaracteristicas += " ,screenX=" + posx
	stringCaracteristicas += " ,screenY=" + posy
		 
	myWin=open(pag,nomVentana,stringCaracteristicas);
}

function cambia_valor(strValor)
	{
	document.Paginador.DIRECCION.value = strValor
	}


function hideLevel(_levelId) {
	var thisLevel = document.getElementById( _levelId );
	var nombreImg = _levelId + "_b";
	eval("document."+ nombreImg + ".src = 'images/flechaOff.gif'");
	thisLevel.style.display = "none";
}

function hideAll() {
	hideLevel("chapters1");
	hideLevel("chapters2");
	hideLevel("chapters3");
	hideLevel("chapters4");
	hideLevel("chapters5");
}
	
function showLevel(_levelId,ocultar) {
	var thisLevel = document.getElementById(_levelId);
	var nombreImg = _levelId + "_b";
	if (thisLevel.style.display == "none") {
		if (ocultar!='no') {
			hideAll(); // Para que solo haya uno abierto a la vez
		}
		eval("document."+ nombreImg + ".src = 'images/flechaOn.gif'");
		thisLevel.style.display = "block";
	} else {
		eval("document."+ nombreImg + ".src = 'images/flechaOff.gif'");
		hideLevel(_levelId);
	}
}

function mostrarFormulari (_levelId) {
	var thisLevel = document.getElementById(_levelId);
	thisLevel.style.display = "block";
}

function MM_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}

function swapImage(inputFile,idFoto) {
	if (!inputFile.value=="") {
		img = "file:///" + inputFile.value;
		eval("document." + idFoto +".src=img");		
	}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}