diff --git a/WebContent/Logon.jsp b/WebContent/Logon.jsp
index d1ab5407c..e16352417 100644
--- a/WebContent/Logon.jsp
+++ b/WebContent/Logon.jsp
@@ -85,6 +85,39 @@ public boolean validUserPassword(HttpServletRequest request, Transaction Sqlca,S
 	}
 
 	if (session!= null) {
+		
+		com.amarsoft.awe.RuntimeContext CurARCTemp = (com.amarsoft.awe.RuntimeContext) session.getAttribute("CurARC");
+
+        String sUserIDCom = request.getParameter("UserID");
+
+        if (sUserIDCom == null || sUserIDCom.equals("")) {
+
+                 String sUserIDSelectedCom = request.getParameter("UserIDSelected");
+
+                 sUserIDCom = sUserIDSelectedCom;
+
+        }
+
+        if(sUserIDCom != null &&  !sUserIDCom.equals("") && CurARCTemp != null && CurARCTemp.getUser()!=null && !sUserIDCom.equals(CurARCTemp.getUser().getUserID())){
+
+                 %><script type="text/javascript">
+
+                 alert(" 当前浏览器已被其他用户占用，请先安全退出当前登陆用户？ ");
+
+                 window.open("index.html","_top");
+
+                 <%-- if(confirm(" 当前浏览器已被其他用户占用，是否安全退出？ ")){
+
+                          window.open("<%=request.getContextPath()%>/Frame/page/sys/SessionOut.jsp?rand="+Math.random(),"_top");
+
+                 } --%>
+
+                 </script><%
+
+                 return;
+
+        }
+		
 		java.util.Enumeration<String> attrs = session.getAttributeNames();
 		while (attrs.hasMoreElements()) {session.removeAttribute(attrs.nextElement());}
 		if (!session.isNew()) {
@@ -105,7 +138,7 @@ public boolean validUserPassword(HttpServletRequest request, Transaction Sqlca,S
 		sScreenWidth = request.getParameter("ScreenWidth");
 
 		//下拉选框用户快速登陆，系统正式运行后可删除
-		String sUserIDSelected = "";
+		 String sUserIDSelected = "";
 		if (sUserID == null || sUserID.equals("")) {
 			sUserIDSelected = request.getParameter("UserIDSelected");
 			sUserID = sUserIDSelected;