// JavaScript Document

var height;
var width=screen.width;
var alfa10 = 0;
var alfa100 = 0;

var posv;

function position() {

  if( typeof window.innerHeight != 'undefined' ) { // for Mozilla 
    height = window.innerHeight;
	posv= height;
	
  }
  else if( typeof document.body.clientHeight != 'undefined') { // for IE
    height = document.body.clientHeight;
	posv= height;	
  }

  if ((width == 800) && (height<440)){
  document.getElementById('cell').height='470px';
  document.getElementById('pie').style.top='460px';
  }

  else{
  document.getElementById('cell').height=height+'px';
  document.getElementById('pie').style.top=height - 35 + 'px';
  }
  
  document.getElementById('capa').style.visibility='visible';
  document.getElementById('capa').style.display='block'; //for NetScape    
  document.getElementById('pie').style.visibility='visible';
  document.getElementById('pie').style.display='block'; //for NetScape   
}

function pagina_inicio(lang) 
{ if ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion)>=4)){ //si el navegador es IE v.4 o superior
	mostrar_homepage(lang);
	} 
	else { //Si no es IE 
	alert("Acción sólo disponible en Internet Explorer"); 
	}
}

function mostrar_homepage(language){
	
x=(width-350)/2; 
y=(posv-105)/2; 

if (language == 'esp'){
document.getElementById('frame_hp').src = "homepage.htm";
}
else if (language == 'eng'){
document.getElementById('frame_hp').src = "homepage_eng.htm";	
}
	
document.getElementById('homepage').showing = true;
document.getElementById('homepage').style.display="block";
document.getElementById('homepage').style.visibility='visible';
document.getElementById('homepage').style.top=y+'px';
document.getElementById('homepage').style.left=x+'px'; 
}

function establecer(){
	document.getElementById('homepage').showing = false;
	document.getElementById('homepage').style.display="none";
	document.getElementById('homepage').style.visibility='hidden';		
	
	document.body.style.behavior="url(#default#homepage)";
	document.body.setHomePage('http://www.ppnor.com');	
}

function favoritos (title,url) {
	if (window.sidebar) { //para Mozilla
		window.sidebar.addPanel(title, url,"");
		} else if (document.all) { // para IE
		window.external.AddFavorite(url,title);
		} else if( window.opera && window.print) {
		return true;
		}
}