How to run vbs as administrator from vbs?

Question

Can anyone help me with running vbs from itself but with administrator rights? I need rename computer with Windows 8 via VBScript, but it's possible only if I run my script through administrator command line (CMD → Run as Administrator → runScript.vbs). If I start script with classic CMD the computer isn't renamed.

My idea is I start script with user rights, without parameters and if there is no parameter, the script re-runs itself with admin rights and with parameter as identificator "I'm admin".

Does anyone know how I can do this?

Edit:

I tried this:

If WScript.Arguments.Count = 0 Then
    Set objShell = CreateObject("Shell.Application")
    objShell.ShellExecute "wscript.exe", "c:\Users\admin\Documents\selfConfigure.vbs -1", "", runas", 1
End If

Answer 1

If UAC is enabled on the computer, something like this should work:

If Not WScript.Arguments.Named.Exists("elevate") Then
  CreateObject("Shell.Application").ShellExecute WScript.FullName _
    , """" & WScript.ScriptFullName & """ /elevate", "", "runas", 1
  WScript.Quit
End If

'actual code