function preLoader(PreImg, txt, ID) {
	var nDiv = "";
	nDiv = document.createElement('DIV');
	// Ha nincs a paraméter: PreImg vagy txt
	
	if (!PreImg) {
		PreImg = "./kepek/preloader.gif";
		ID = "PRELOADER";
	}
	
	if (!txt) txt = "Betöltés folyamatban";
	
	nDiv.innerHTML = '<img src="'+PreImg+'" alt=""><div>'+txt+'</div>';
	var nStyle = nDiv.style;
	
	// Stílus beállítása, ha nincs megadva ID
	if (!ID)
	{	
		nStyle.position = "absolute";
		nStyle.marginTop = "50%";
		nStyle.left = "45%";
		nDiv.style.border = "3px double black";
		nStyle.zIndex = "99";
		nStyle.backgroundColor = "#D5D5D5";
		nStyle.textAlign = "center";
		nStyle.padding = "20px";
	}
	else nDiv.id = ID;
	
	alap = document.getElementById('ALAP');
	
	insertAfter (alap,nDiv);
	//document.body.appendChild(nDiv);
	return nDiv;
}

function preEnd (nDiv) {
	document.body.removeChild(nDiv);
}