function chngGalPic(typ, nr, maxNr) {
	picObj = document.getElementById("picGr");
	textObj = document.getElementById("ContentText");
	linkObj = document.getElementById(nr);
	
	picObj.src = "bilder/gal"+typ+nr+".jpg";
	textObj.innerHTML = this["gal"+typ+"Texte"][nr];
	
	for (i=1; i<=maxNr; i++) {
		document.getElementById(i).style.fontWeight = "";
		document.getElementById(i).style.color = "";
	}
	linkObj.style.fontWeight = "bold";
	linkObj.style.color = "#333";
}