function teams() {
	var id = document.getElementById('team_sel').options[document.getElementById('team_sel').selectedIndex].value;
	if(id!=0) {
		document.location.href='index.php?p=teams&team='+id;	
	}
}

function zoeken() {
	if(document.getElementById('trefwoord').value=='zoeken') {
		document.getElementById('trefwoord').value='';
	}
}