var elemente = ['USA', 'CAN', 'BRA', 'SAF', 'AUS', 'NZL', 'ARG', 'SIN', 'IRL', 'AUSNZL', 'DNK', 'IND', 'NOR', 'FIN', 'SWE', 'USAW'];


	function writeStyleSheet() {
		var style = " { display:none; }";
		for (var i=0; i < elemente.length; i++) style = (i < (elemente.length-1)?', ':'') + ".class" + elemente[i] + style;
		document.write('<style type="text/css">'+style+'</style>')
	}

	function auswahlChange (obj) {
		var selected = {};
		for (var i=0; i < obj.options.length; i++) {
			var v = obj.options[i].value;
			if (obj.options[i].selected) { selected[v] = true; }
		}
		if (selected['AUS'] || selected['NZL']) selected['AUSNZL'] = true;

		for (var k=0; k < elemente.length; k++) {
			var v = elemente[k];
			var display = selected[v] ? 'table-row' : 'none';
			var l = document.getElementsByClassName('class'+v);
			for (var i=0; i<l.length; i++) {
				l[i].style.display = display;
			}
		}
	}

	
writeStyleSheet()