// JavaScript Document

var is=new function (){
	this.VER=navigator.appVersion
	this.AGENT=navigator.userAgent
	this.DOM=document.getElementById?1:0
	this.IE=(document.all && !this.DOM)?1:0;
	this.MAC=this.AGENT.indexOf("Mac")>-1
	this.NS6=document.getElementById&&!document.all?1:0
	this.NS4=(document.layers && !this.DOM)?1:0;
	this.OPERA=this.AGENT.indexOf('Opera')>-1
	return this
}

function getElement(id){
	if (is.DOM)	return document.getElementById(id)
	else
	if (is.IE) 	return eval("document.all."+id)
	else
	if (is.NS)	return eval("document."+id)
}

function unhide(divID) {
  var item = document.getElementById(divID);
  if (item) {
    item.className=(item.className=='hidden')?'unhidden':'hidden';
  }
}


function bookmarksite(title,url){
if (window.sidebar) // firefox
	window.sidebar.addPanel(title, url, "");
else if(window.opera && window.print){ // opera
	var elem = document.createElement('a');
	elem.setAttribute('href',url);
	elem.setAttribute('title',title);
	elem.setAttribute('rel','sidebar');
	elem.click();
} 
else if(document.all)// ie
	window.external.AddFavorite(url, title);
}
function activa_tab(obj){
	try	{
		if(document.getElementById){
			document.getElementById('tab1').className="off";
			document.getElementById('tab2').className="off";
			document.getElementById('tab3').className="off";
			document.getElementById('tab4').className="off";
			document.getElementById('showtab1').className="hide_on";
			document.getElementById('showtab2').className="hide_on";
			document.getElementById('showtab3').className="hide_on";
			document.getElementById('showtab4').className="hide_on";
			document.getElementById(obj).className="on";
			document.getElementById('show'+obj).className="hide_off";
		}
	}
	catch(e){
		//nada
	}
}