substring in javascript

[abdulbasith]

i need to find check for string that contains 172.16.60 series of ip, if it matches this ip i will do some operation else some other operation.
can any one tell me how to check whether the ip that iam getting is of this above series..

[kenobewan]

In vb.net...

using System.Web.HttpRequest
Dim client_ip as string 
client_ip = Request.UserHostAddress()

...will obtain IP and use split() to separate into 4 arrays to compare.

Hope that this helps.