function selectAll(what)
{
	if (what == "range") {
		what = true;
		range = true;
	} else {
		range = false;
	}

	inrange = false;
	me = document.forms.f_select;

	for (i = 0 ; i < me.length ; i++) {
		if (range && inrange && me.elements[i].checked) {
			break;
		} else if (range && inrange) {
			me.elements[i].checked = true;
		} else if (range && !inrange && me.elements[i].checked == true) {
			inrange = true;
		} else if (!range) {
			me.elements[i].checked = what;
		}
	}
}