How to select buttons when a web page is redirected in C#

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C#

HTML

Hi!
How can I select a button programmatically after already selecting a button?
Please see below code:
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

private void buttonNavigate_Click(object sender, EventArgs e)
{
string url = "http://www.someurl.com";
webBrowser1.Navigate(url);

while (webBrowser1.ReadyState != WebBrowserReadyState.Complete)
{
Application.DoEvents();
}

HtmlElementCollection elements = webBrowser1.Document.GetElementsByTagName("input");

foreach (HtmlElement element in elements)
{
if (element.GetAttribute("type").Equals("button") && (element.GetAttribute("value").Equals("Click Here")))
{
element.InvokeMember("click");
}


//The code to this point works great. The new page loads using Java I think to provide the link to the new page. The new page loads in the same window which is desirable. The below code does not click a button to load a new page.

Any help would be great!
Nick



HtmlElementCollection elements2 = webBrowser1.Document.GetElementsByTagName("input");

foreach (HtmlElement element2 in elements2)
{
if (element2.GetAttribute("type").Equals("button") && (element2.GetAttribute("value").Equals("Click Here 2")))
{
element2.InvokeMember("click");
}

}
}
}
}
}

I'm wondering why the HtmlElementCollection isn't working on the second instance?