How to use custom sections in config file

<?xml version="1.0" encoding="Windows-1252"?>
<configuration>
    <configSections>
        <section name="FavoriteUrls" 
                type="System.Configuration.NameValueSectionHandler" />
    </configSections>   
  


    <appSettings>
    </appSettings>

    <FavoriteUrls>
        <add key="Microsoft" value="http://www.microsoft.com/" />
        <add key="DotNetSpider" value="http://www.DotNetSpider.com/" />
        <add key="AsianSpider" value="http://www.AsianSpider.com/" />
    </FavoriteUrls>
    
</configuration>

using System.Collections.Specialized;
using System.Configuration;

NameValueCollection section = (NameValueCollection) 
                                 ConfigurationSettings.GetConfig("FavoriteUrls");

for (int i = 0; i < section.Keys.Count; i++)
{
    string key = section.Keys[i];
    string name = section.GetValues (key)[0];

    // .GetValues() returns a collection of values. In our case, we have 
    //only one value, so get the first one.
}