<%@ page contentType="text/html; charset=GB2312" %>
<%@ page import="com.opensymphony.user.UserManager,				 java.util.Collection,				 java.util.Iterator,				 com.opensymphony.user.User,				 java.net.URLEncoder,				 com.opensymphony.user.Group"%><%	UserManager um = UserManager.getInstance();	if (request.getParameter("addGroup") != null)	{		Group newgroup = um.createGroup(request.getParameter("name"));	}	else if (request.getParameter("delGroup") != null)	{		Group removegroup = um.getGroup(request.getParameter("delGroup"));		removegroup.remove();	}%><h1>Groups</h1><hr><ol><%	Collection groups = um.getGroups();	for (Iterator iterator = groups.iterator(); iterator.hasNext();)	{		Group group = (Group) iterator.next();		%>		<li><%= group.getName() %> [<a href="viewgroup.jsp?name=<%= URLEncoder.encode(group.getName()) %>">View</a> | <a href="groups.jsp?delGroup=<%= URLEncoder.encode(group.getName()) %>">Del</a>]</li>		<%	}%></ol><hr><form action="groups.jsp"><b>Add Group</b><br>Name: <input type="text" name="name"><br><input type="submit" name="addGroup" value="Add group"></form><%@ include file="nav.jsp" %>