Determine browser type

2. function AppInfo () {
4. var browser = {
6. MSIE: false, Firefox: false, Opera: false, Safari: false,
8. Chrome: false, Netscape: false, appname: ' unknown ', version:0
10. },
12. useragent = Window.navigator.userAgent.toLowerCase ();
14. if (/(Msie|firefox|opera|chrome|netscape) \d+ (\d[\d.] *)/.test (useragent)) {
16. BROWSER[REGEXP.$1] = true;
18. Browser.appname = regexp.$1;
20. Browser.version = regexp.$2;
22. } Else if (/version\d+ (\d[\d.) *). *safari/.test (useragent)) { //Safari
24. Browser.safari = true;
26. Browser.appname = ' Safari ';
28. Browser.version = regexp.$2;
30. }
32. return browser;
34. }
36. Invoke Example
38. var myos = AppInfo ();
40. If the current browser is IE, pop up the browser version, otherwise pop up the current browser name and version
42. if (Myos.msie) {
44. alert (myos.version); Pop-up IE version
46. } Else {
48. Alert (Myos.appname + myos.version);
50. }

Determine if the browser is roaming

2. function AppInfo () {
4. var browser = {
6. MSIE: false, Firefox: false, Opera: false, Safari: false,
8. Chrome: false, Netscape: false, appname: ' unknown ', version:0
10. },
12. useragent = Window.navigator.userAgent.toLowerCase ();
14. if (/(Maxthon|firefox|opera|chrome|netscape) \d+ (\d[\d.] *)/.test (useragent)) {
16. BROWSER[REGEXP.$1] = true;
18. Browser.appname = regexp.$1;
20. Browser.version = regexp.$2;
22. } Else if (/version\d+ (\d[\d.) *). *safari/.test (useragent)) { //Safari
24. Browser.safari = true;
26. Browser.appname = ' Safari ';
28. Browser.version = regexp.$2;
30. }
32. return browser;
34. }
36. Invoke Example
38. var myos = AppInfo ();
40. If the current browser is IE, pop up the browser version, otherwise pop up the current browser name and version
42. if (Myos.msie) {
44. alert (myos.version); Pop-up IE version
46. } Else {
48. Alert (Myos.appname + myos.version);
50. }

Determine browser type