function scaleUpPicture(rid, picFile, largePicFile){
	document.getElementById("pic" + rid).src = document.getElementById("pic" + rid).src.replace(picFile, largePicFile)
	document.getElementById("pic" + rid).className = "large";
	functionCall = document.getElementById("picAnchorA" + rid).href;
	functionCall = functionCall.replace("scaleUpPicture", "scaleDownPicture");
	document.getElementById("picAnchorA" + rid).href = functionCall;
	document.getElementById("picAnchorB" + rid).href = functionCall;
	document.getElementById("picAnchorB" + rid).innerHTML = "verkleinern";
}

function scaleDownPicture(rid, picFile, largePicFile){
	document.getElementById("pic" + rid).src = document.getElementById("pic" + rid).src.replace(largePicFile, picFile)
	document.getElementById("pic" + rid).className = "small";
	functionCall = document.getElementById("picAnchorA" + rid).href;
	functionCall = functionCall.replace("scaleDownPicture", "scaleUpPicture");
	document.getElementById("picAnchorA" + rid).href = functionCall;
	document.getElementById("picAnchorB" + rid).href = functionCall;
	document.getElementById("picAnchorB" + rid).innerHTML = "vergrößern";
}