function chArtBox(inputString,number) {
	var addArtists = document.getElementById("AddArtists");
	var boxes = addArtists.getElementsByTagName("input");
	boxes[3+number].value = inputString;
}

function countArtBox() {
	var addArtists = document.getElementById("AddArtists");
	var boxes = addArtists.getElementsByTagName("input");
	var p = 0;
	for (var o in boxes) {
		if (boxes[o].size == "20") {
			p++;
		}
	}
	return p-1;
}