<!-- 
//detect browser:
browserName = navigator.appName;
browserVer = parseInt(navigator.appVersion);
if (browserName == "Netscape" && browserVer >= 3) browserVer = "1";
else if (browserName == "Microsoft Internet Explorer" && browserVer == 4) browserVer = "1";
else browserVer = "2";

//preload images:
if (browserVer == 1) 
{
	btn_dzialanie = new Image(107,21);
	btn_dzialanie.src = "images/dzialanie.gif";
	btn_dzialanie_hover = new Image(107,21);
	btn_dzialanie_hover.src = "images/dzialanie_hover.gif";
	
	btn_skladniki = new Image(107,21);
	btn_skladniki.src = "images/skladniki.gif";
	btn_skladniki_hover = new Image(107,21);
	btn_skladniki_hover.src = "images/skladniki_hover.gif";
	
	btn_sposob = new Image(107,21);
	btn_sposob.src = "images/sposob.gif";
	btn_sposob_hover = new Image(107,21);
	btn_sposob_hover.src = "images/sposob_hover.gif";
	
	btn_kontakt = new Image(107,21);
	btn_kontakt.src = "images/kontakt.gif";
	btn_kontakt_hover = new Image(107,21);
	btn_kontakt_hover.src = "images/kontakt_hover.gif";	
}

function swap_button(imgDocID, imgObjName) 
{
	if (browserVer == 1) 
	{
		document.images[imgDocID].src = eval(imgObjName + ".src");
		return true;	
	}
}
//end hiding -->