def submit_function(self, event):
index = self.functions_list_box.GetSelection()
fx = Graph.function(self.function_text_ctrl.GetValue(),
self.function_name_text_ctrl.GetValue())
fx.will_graph = self.function_show_checkbox.GetValue()
fx.line_color = self.function_color_combo_box.GetValue()
fx.line_style = self.function_style_combo_box.GetValue()
#Set the function
Graph.function_list[index] = fx
#Update the box
self.setup_functions_list()
event.Skip()
