Loading Gmap from serverside

string lat = "",lat = "";

private void loadmap()
{

HtmlGenericControl Body = this.Master.FindControl("myBody") as HtmlGenericControl;
try
{
if (Body != null)
{
string loadString = "mapload('" + lat + "','" + lng + "','NameOfLocation','./Image/Image.jpg')";
Body.Attributes.Add("onLoad", loadString);
Body.Attributes.Add("onunload", "GUnload()");
}
}
catch (Exception ex)
{
Response.Write("Error:" + ex.ToString());
}
}

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ShriKrishna Bhardwaj , With ASP.Net, SQL Server, Javascript