Can somebody please help me with this i want display a chart when clicking a button.

Error that i encounter

Error in page: FusionCharts is undefined

here is the code:

Dim M_file As String

M_file = "/Data/Mydata.xml"

FTChart.Text = InfoSoftGlobal.FusionCharts.RenderChart("/FusionCharts/Line.swf", M_file, "", "FileTransferChart", "600", "300", False, False)

Note :FTChart is asp:literal, i add infosoftglobal.dll to web reference and add

<script language="Javascript" src="/FusionCharts/FusionCharts.js" ></script>