setDefaultTextEncodingName in webviewsettings

dear team
what are string to be used in setDefaultTextEncodingName of webviewsettings.
shall i use UTF-8.

i write my code like below is it correct

Dim loadweb as webview
Dim wb as Webviewsettings

Activity.LoadLayout("main")
wb.setDefaultTextEncodingName(loadweb,"UTF-8")
loadweb.LoadUrl("http://m.uthayan.mobi")
ProgressDialogShow2("Loading...",False)