var mDecr; //timeout

// mostrar/ocultar capas menu
function despMenu(nCapa,ver){
obj = document.getElementById(nCapa);
if (ver>0) obj.style.visibility = 'visible';
else obj.style.visibility = 'hidden';
ocultar_rest(nCapa);
}
// oculta capa visible al cambiar a otro boton
function ocultar_rest(nCapa2){
if(document.getElementById('aboutme').style.visibility == 'visible' && nCapa2 != 'aboutme') document.getElementById('aboutme').style.visibility = 'hidden';
if(document.getElementById('freewriting').style.visibility == 'visible' && nCapa2 != 'freewriting') document.getElementById('freewriting').style.visibility = 'hidden';
if(document.getElementById('links').style.visibility == 'visible' && nCapa2 != 'links') document.getElementById('links').style.visibility = 'hidden';
}

// situa cada capa debajo del correspondiente boton
function colocar_cap(vRef){

var vElem = document.getElementById(vRef.slice(1));
var oPar = document.getElementById(vRef);

	if(vRef == 'Taboutme'){
		vElem.style.left = oPar.offsetParent.offsetLeft + oPar.offsetLeft + 12 + 'px';
		vElem.style.top = oPar.offsetTop + 55 + 'px';
	}
	if(vRef == 'Tfreewriting'){
		vElem.style.left = oPar.offsetParent.offsetLeft + oPar.offsetLeft + 16 + 'px';
		vElem.style.top = oPar.offsetTop + 55 + 'px';
	}
	if(vRef == 'Tlinks'){
		vElem.style.left = oPar.offsetParent.offsetLeft + oPar.offsetLeft + 15 + 'px';
		vElem.style.top = oPar.offsetTop + 55 + 'px';
	}
}

//cuenta y limita numero de caracteres en cajas de texto
var ns6=document.getElementById&&!document.all
function restrictinput(maxlength,e,placeholder){
	if (window.event&&event.srcElement.value.length>=maxlength) return false
	else if (e.target&&e.target==eval(placeholder)&&e.target.value.length>=maxlength){
		var pressedkey=/[a-zA-Z0-9\.\,\/]/ //detect alphanumeric keys
		if (pressedkey.test(String.fromCharCode(e.which)))
		e.stopPropagation()
	}
}
function countlimit(maxlength,e,placeholder){
	var theform=eval(placeholder)
	var lengthleft=maxlength-theform.value.length
	var placeholderobj=document.all? document.all[placeholder] : document.getElementById(placeholder)
	if (window.event||e.target&&e.target==eval(placeholder)){
		if (lengthleft<0) theform.value=theform.value.substring(0,maxlength)
		placeholderobj.innerHTML=lengthleft
	}
}
function displaylimit(theform,thelimit){
	var limit_text='<b><span id="'+theform.toString()+'">'+thelimit+'</span></b> characters remaining'
	if (document.all||ns6) document.write(limit_text)
	if (document.all){
		eval(theform).onkeypress=function(){ return restrictinput(thelimit,event,theform)}
		eval(theform).onkeyup=function(){ countlimit(thelimit,event,theform)}
	} else if (ns6){
		document.body.addEventListener('keypress', function(event) { restrictinput(thelimit,event,theform) }, true); 
		document.body.addEventListener('keyup', function(event) { countlimit(thelimit,event,theform) }, true); 
	}
}
/*
poner este script donde interese (mostrara el recuento de caracteres faltante para la caja indicada)
<script language="JavaScript" type="text/javascript">
<!--
displaylimit("document.nombre_formulario.nombre_caja_texto",limite_caracteres)
-->
</script>
*/

//imprime paginas
var da = (document.all) ? 1 : 0;
var pr = (window.print) ? 1 : 0;
var mac = (navigator.userAgent.indexOf("Mac") != -1); 

function printPage() {
  if (pr) // NS4, IE5
    window.print()
  else if (da && !mac) // IE4 (Windows)
    vbPrintPage()
  else // other browsers
    alert("Sorry, your browser doesn't support this feature. Print this page using your browser's menu bar.");
  return false;
}