Social Networking :: Google Maps Distance Calculator From Database

I used a Google Maps Distance Finder API that comes with two textboxes, one for the source, and one for the destination. It also comes with a button, that when clicked, will find the distance between the two locations using the funciton GetDistance(). The code before the function initializes the map. I created another button and used VB.Net to run SQL code first, and then to automatically populate the two textboxes, then I had it call the function GetDistance().

The issue I ran into is that the function won't calculate the distance, and the map never changes from its default state. I believe it's because it's not running the code that initializes the map. (I could be wrong) I have tried WebBrowser1, to call the click of the button, but I had to Inherit Forms, which I can't do, and I have also tried adding the top code into the GetDistance() function. Is it possible to call the initializing code before GetDistance()?

Here is the JS function code:

<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?sensor=false&libraries=places"></script>
<script type="text/javascript">
var source, destination;
var directionsDisplay;
var directionsService = new google.maps.DirectionsService();
google.maps.event.addDomListener(window, 'load', function () {

[Code] ....

Here is the VB Code I use to call the JS Function: 

Protected Sub Button1_Click(ByVal sender As Object, ByVal e As EventArgs) Handles Button1.Click
Dim cn As New OleDb.OleDbConnection("Provider = Microsoft.ACE.OleDb.12.0;" & _
"Data Source=|DataDirectory|Address Database One Calculation.mdb")
cn.Open()
Dim cmd1 As OleDb.OleDbCommand
Dim sqlconnection1 As String

[Code] .....

For reference, here is the explanation of the full API Code: [URL] ....