function openWin(url, name, w, h, perc, scroll, resize) {
	var winX = (screen.availWidth - w)*perc*.01;
	var winY = (screen.availHeight - h)*perc*.01;
	popupWin = window.open(url, name,'width=' + w + ',height=' + h + ',left=' + winX + ',top=' + winY + ',scrollbars=' + scroll + ',resizable=' + resize);
}
function changeAlbum(a) {
	parent.catalogue_main.location='catalogue/main_'+a+'.html';
	parent.catalogue_info.location='catalogue/info_'+a+'.html';
}

function changeArtist(a) {
	parent.artist_main.location='artist/main_'+a+'.html';
	parent.artist_info.location='artist/info_'+a+'.html';
}