function swapNavi(iMode, sImageID, sLanguage) {
	sLanguageLetter = (!sLanguage) ? 'd' : sLanguage;
		// Modus 1: Bild auf Hover swapen -> bei MouseOver
		if(iMode == "1") {
			document.getElementById(sImageID).src = "../images/buttons/navi/" + sImageID + "-hover-" + sLanguageLetter + ".jpg";
			markActive(sLanguageLetter);
//			markActive("'" + sLanguageLetter + "'");
		}
		// Modus 2: Bild auf Normal swapen -> bei MouseOut
		else if(iMode == "2") {
			document.getElementById(sImageID).src = "../images/buttons/navi/" + sImageID + "-" + sLanguageLetter + ".jpg";
			markActive(sLanguageLetter);
//			markActive("'" + sLanguageLetter + "'");
	        }
}