if (moz == null) {
	var ie = document.all != null;
	var moz = !ie && document.getElementById != null && document.layers == null;
}
function delArc(mid) {
	var qstr=getCheckboxItem();
	if (mid==0) mid = getOneItem();
	location="member_do.php?id="+qstr+"&dopost=delmembers";
}
//获得选中文件的文件名
function getCheckboxItem() {
	var allSel="";
	if (document.form2.mid.value) return document.form2.mid.value;
	for (i=0;i<document.form2.mid.length;i++) {
		if (document.form2.mid[i].checked) {
			if (allSel=="")
				allSel=document.form2.mid[i].value;
			else
				allSel=allSel+"`"+document.form2.mid[i].value;
		}
	}
	return allSel;
}
//获得选中其中一个的id
function getOneItem() {
	var allSel="";
	if (document.form2.mid.value) return document.form2.mid.value;
	for (i=0;i<document.form2.mid.length;i++) {
		if (document.form2.mid[i].checked) {
			allSel = document.form2.mid[i].value;
			break;
		}
	}
	return allSel;
}
function selAll() {
	if (typeof document.form2.mid.length === "undefined") {
		document.form2.mid.checked = true;
	}
	for (i=0;i<document.form2.mid.length;i++) {
		if (!document.form2.mid[i].checked) {
			document.form2.mid[i].checked=true;
		}
	}
}
function noSelAll() {
	if (typeof document.form2.mid.length === "undefined") {
		document.form2.mid.checked = false;
	}
	for (i=0;i<document.form2.mid.length;i++) {
		if (document.form2.mid[i].checked) {
			document.form2.mid[i].checked=false;
		}
	}
}