// JavaScript Document
function getObj (e){ //Shortcut per getElementById
	if(typeof(e)=="string")return document.getElementById(e);
	else if(typeof(e)=="object") return e;
	else return  null;
}

function show(e){ //mostra oggetto
	var obj = getObj(e);
	if(obj!=null) obj.style.display="";
}

function hide(e){ //nasconde oggetto
	var obj = getObj(e);
	if(obj!=null) obj.style.display="none";
}

function showElement(iden) {
	show(iden);
}

function hideElement(iden) {
	hide(iden);
}