Search and display Location Address in Google Maps ASP.Net

Sir,

The page is not redirecting to another tab...the address is opening in the current tab itself but i want the address of google map to be redirected in another tab.my code is

protected void Button1_Click(object sender, EventArgs e)
    {
        string address;
        try
        {

            StringBuilder queryAddress = new StringBuilder();
            queryAddress.Append("http://maps.google.com/maps?q=");
            if (TextBoxFadrs.Text != string.Empty)
            {
                address = TextBoxFadrs.Text;
                queryAddress.Append(address);
                
            }

            address = queryAddress.ToString();
            Response.Redirect(address, false);
            
        }
        catch (Exception ex)
        {
            MessageBox.Show(ex.Message.ToString(), "Unable to Retrieve Map");
           
        }
    }

and html is

<asp:Button ID="Button1" runat="server" Text="See Map" OnClick="Button1_Click" OnClientClick = "SetTarget();"/>

the javascript is

<script type = "text/javascript">

        function SetTarget() {

            document.forms[0].target = "_blank";

        }

</script>