修改关闭浏览器发送2次签出bug

WebUI/CallCenterWeb.UI/js/main.js

     return currentdate;
 }
 
+var iswebcloase = 1;
 window.onunload = function () {
-    obj.Type = 'Logout';
-    Send();
+    if (iswebcloase) {
+        iswebcloase = 0;
+        if (ws.readyState == ws.OPEN) {
+            obj.Type = 'Logout';
+            Send();
+            ws.onclose();
+        }
+    }
 }
 window.onbeforeunload = function () {
-    obj.Type = 'Logout';
-    Send();
+    if (iswebcloase) {
+        iswebcloase = 0;
+        if (ws.readyState == ws.OPEN) {
+            obj.Type = 'Logout';
+            Send();
+            ws.onclose();
+        }
+    }
 }