11(
22 function ( w ) {
3-
4- var OnLine = function ( w ) {
53
6- if ( w . XMLHttpRequest ) {
7- var xmlhttp = new XMLHttpRequest ( )
8- } else if ( w . ActiveXObject ) {
9- var xmlhttp = new ActiveXObject ( "Microsoft.XMLHTTP" )
10- }
11-
12- this . onInternetStatus = function ( ) {
13- if ( xmlhttp . readyState == 4 ) {
14- try {
15- if ( xmlhttp . status == 200 ) {
16- if ( w . onlineHandler !== undefined && w . online !== true ) {
17- w . onlineHandler ( ) ;
18- }
19- w . online = true ;
20- return ;
21- } else {
22- if ( w . offlineHandler !== undefined && w . online !== false ) {
23- w . offlineHandler ( ) ;
24- }
25- w . online = false ;
26- }
27- } catch ( err ) {
28- if ( w . offlineHandler !== undefined && w . online !== false ) {
29- w . offlineHandler ( ) ;
4+ w . internetConnection = w . internetConnection || { } ;
5+
6+ var xmlhttp = new ( window . ActiveXObject || XMLHttpRequest ) ( "Microsoft.XMLHTTP" ) ;
7+
8+ w . internetConnection . onInternetStatus = function ( ) {
9+ if ( xmlhttp . readyState == 4 ) {
10+ try {
11+ if ( xmlhttp . status == 200 ) {
12+ if ( w . onLineHandler !== undefined && w . onLine !== true ) {
13+ w . onLineHandler ( ) ;
3014 }
31- w . online = false ;
32- }
33- }
34- }
35-
36- this . checkOnLine = function ( ) {
37- if ( xmlhttp != null ) {
38- xmlhttp . onreadystatechange = this . onInternetStatus ;
39- xmlhttp . open ( "GET" , w . onlineCheckURL , true ) ;
40- xmlhttp . send ( null ) ;
15+ w . onLine = true ;
16+ return ;
17+ } else {
18+ if ( w . offLineHandler !== undefined && w . onLine !== false ) {
19+ w . offLineHandler ( ) ;
20+ }
21+ w . onLine = false ;
22+ }
23+ } catch ( err ) {
24+ if ( w . offLineHandler !== undefined && w . onLine !== false ) {
25+ w . offLineHandler ( ) ;
26+ }
27+ w . onLine = false ;
4128 }
29+ }
30+ }
31+
32+ w . internetConnection . checkonLine = function ( ) {
33+ if ( xmlhttp != null ) {
34+ xmlhttp . onreadystatechange = this . onInternetStatus ;
35+ xmlhttp . open ( "HEAD" , w . onLineCheckURL , true ) ;
36+ xmlhttp . send ( ) ;
4237 }
43-
44- this . startCheck = function ( ) {
45- window . internetConnection . checkOnLine ( ) ;
46- setInterval ( "window.internetConnection.checkOnLine()" , w . onlineCheckTimeout ) ;
47- }
48-
49- this . stopCheck = function ( ) {
50- clearInterval ( "window.internetConnection.checkOnLine()" , w . onlineCheckTimeout ) ;
51- }
52- return this ;
5338 }
5439
55- w . onlineCheckURL = "http://www.pixelsresearch.com/online.php" ;
56- w . onlineCheckTimeout = 5000 ;
57- w . internetConnection = new OnLine ( window ) ;
40+ w . internetConnection . startCheck = function ( ) {
41+ w . internetConnection . checkonLine ( ) ;
42+ setInterval ( "window.internetConnection.checkonLine()" , w . onLineCheckTimeout ) ;
43+ }
44+
45+ w . internetConnection . stopCheck = function ( ) {
46+ clearInterval ( "window.internetConnection.checkonLine()" , w . onLineCheckTimeout ) ;
47+ }
48+ return this ;
49+
50+ w . onLineCheckURL = "http://www.pixelsresearch.com/onLine.php?r=" + Math . random ( ) ;
51+ w . onLineCheckTimeout = 5000 ;
5852 w . internetConnection . startCheck ( ) ;
5953 }
60- ) ( window ) ;
54+ ) ( window ) ;
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