function lTab(id,m,n) {
    for (var i = 1; i<=n; i++) {
	if (i == m) continue;
	document.getElementById(id+"_"+i).style.display = 'none';
	document.getElementById("l_"+id+"_"+i).className = '';
    }
    document.getElementById(id+"_"+m).style.display = (document.getElementById(id+"_"+m).style.display == 'block')?'none':'block';
    document.getElementById("l_"+id+"_"+m).className = (document.getElementById("l_"+id+"_"+m).className == 'here')?'':'here';

    location.href="#"+id;
}