function fitDiv()
{
	if(document.getElementById("srodek")!=null)
	{
		var height1 = document.getElementById("srodek").offsetHeight;
		var height2 = document.getElementById("prawy").offsetHeight;
		if(height2>height1)
			document.getElementById("srodek").style.height = height2 + "px";
	}
	else
	{
		var height1 = document.getElementById("srodek2").offsetHeight;
		var height2 = document.getElementById("menu_bok").offsetHeight;
		if(height2>height1)
			document.getElementById("srodek2").style.height = height2 + "px";
	}
}