protected void Page_Load(object sender, EventArgs e)
{
//Check if user is authenticated, if so, then redirect him to login page.
General.IsAuthenticated(Session["email"], Response);
//Sets the welcome text, and display the user's email and account type (Student or Organizer).
lblWelcome.Text = "Welcome " + Session["email"].ToString() + ", your account type is " + Session["accType"];
DataTable opportunities = Opportunity.GetAll();
ListOpportunities(opportunities);
}