function excursus (fname) {
	var exWin = window.open(fname,'excursus','width=500,height=500,scrollbars=yes,status=yes,menu=yes,resize=yes');	
}

function showIndex (level) {
	window.name = "wordwin";
	var indexsrc = "site_index.html";
	if (level == 1) {
		indexsrc = "../" + indexsrc;
	}
	var exWin = window.open(indexsrc,'index','width=500,height=500,scrollbars=yes,status=yes,menu=yes,resize=yes');	
}