ArcPY add on

import arcpy
import pythonaddins

class Add(object):
    """Implementation for AP_Zoom_addin.button_0 (Button)"""
    def __init__(self):
        self.enabled = True
        self.checked = False
    def onClick(self):
        mapdoc = "CURRENT"
        mxd = arcpy.mapping.MapDocument(mapdoc)

        for df in arcpy.mapping.ListDataFrames(mxd):
            for reflayer in arcpy.mapping.ListLayers(mxd,"Ap_Map_Numbers", df):
                symbologyLayer = r'G:\Texas\Potter-Randall\Database\Ownership.lyr'
                hazards = arcpy.mapping.ListLayers(mxd, "Zones_A_AE", df)[0]
                #create a search cursor to get relevant information about a parcel
                sc = arcpy.SearchCursor(reflayer)
                #for loop to get the selected data
                for row in sc:
                    #select the relevant fields to be put on the map
                    ap = row.getValue("MAP_NUMBER")
                    insertLayer = arcpy.mapping.Layer(r'G:\Texas\Potter-Randall\Database' + '\\' + str(ap) + '\\' + str(ap) + ".gdb" + '\\' + str(ap))
                    arcpy.env.addOutputsToMap = False
                    arcpy.ApplySymbologyFromLayer_management(insertLayer, symbologyLayer)
                    arcpy.mapping.InsertLayer(df, reflayer, insertLayer, "BEFORE")
                    hazards.visible = True
                    df.zoomToSelectedFeatures()
                    arcpy.RefreshActiveView()

class Layout(object):
    """Implementation for ParcelMapperAddin_addin.Layout (Button)"""
    def __init__(self):
        self.enabled = True
        self.checked = False
    def onClick(self):
        #set the map document reference
        mxd = arcpy.mapping.MapDocument("CURRENT")
        #set the dataframe reference using the map document and the first data frame in the list
        df = arcpy.mapping.ListDataFrames(mxd)[0]
        #set the layer reference using the map document reference and the first layer in the list of layers
        layer = arcpy.mapping.ListLayers(mxd)[0]
        #heading of the map
        map_title = "Ap_Map"
        #create a search cursor to get relevant information about a parcel
        sc = arcpy.SearchCursor(layer)
        #for loop to get the selected data
        for row in sc:
            #select the relevant fields to be put on the map
            Block_Number = row.getValue("BLOCK_NUMB")
            Lot_number = row.getValue("LOT_NUMBER")
            Job_Number = row.getValue("Job_Num")
            Job_Number2 = row.getValue("Job_Num2")
            Job_Number3 = row.getValue("Job_Num3")
            Address =row.getValue("ADDRESS_1")
            City =row.getValue("m_city")
            State =row.getValue("m_state")
            Zip =row.getValue("m_zip")

        #text element of the map
        elm = arcpy.mapping.ListLayoutElements(mxd, "TEXT_ELEMENT", "Heading")[0]
        elmBlockNumber = arcpy.mapping.ListLayoutElements(mxd, "TEXT_ELEMENT", "BlockNumber")[0]
        elmLotNumber = arcpy.mapping.ListLayoutElements(mxd, "TEXT_ELEMENT", "LotNumber")[0]
        elmJob_Number = arcpy.mapping.ListLayoutElements(mxd, "TEXT_ELEMENT", "JobNumber")[0]
        elmJob_Number2 = arcpy.mapping.ListLayoutElements(mxd, "TEXT_ELEMENT", "JobNumber2")[0]
        elmJob_Number3 = arcpy.mapping.ListLayoutElements(mxd, "TEXT_ELEMENT", "JobNumber3")[0]
        elmAddress = arcpy.mapping.ListLayoutElements(mxd, "TEXT_ELEMENT", "Address")[0]
        elmCity = arcpy.mapping.ListLayoutElements(mxd, "TEXT_ELEMENT", "City")[0]
        elmState = arcpy.mapping.ListLayoutElements(mxd, "TEXT_ELEMENT", "State")[0]
        elmZip = arcpy.mapping.ListLayoutElements(mxd, "TEXT_ELEMENT", "Zip")[0]

        #font of the heading
        elm.text = '<FNT name ="Arial" size="32">' +  map_title + '</FNT>'
        elmBlockNumber.text = '<FNT name ="Arial" size="14">' + 'Block Number: ' + Block_Number + '</FNT>'
        elmLotNumber.text = '<FNT name ="Arial" size="14">' + 'Lot Number: ' + Lot_number + '</FNT>'
        elmJob_Number.text = '<FNT name ="Arial" size="14">' + 'Job Number: ' + Job_Number + '</FNT>'
        elmJob_Number2.text = '<FNT name ="Arial" size="14">' + 'Job Number 2: ' + Job_Number2 + '</FNT>'
        elmJob_Number3.text = '<FNT name ="Arial" size="14">' + 'Job Number 3: ' + Job_Number3 + '</FNT>'
        elmCity.text = '<FNT name ="Arial" size="14">' + City + '</FNT>'
        elmAddress.text = '<FNT name ="Arial" size="14">' + Address + '</FNT>'
        elmState.text = '<FNT name ="Arial" size="14">' + State + '</FNT>'
        elmZip.text = '<FNT name ="Arial" size="14">' + Zip + '</FNT>'
        #Change the view to layout view
        arcpy.mapping.MapDocument("CURRENT").activeView = "PAGE_LAYOUT"
        #refresht the active view
        arcpy.RefreshActiveView()
        #delete search cursor and row variables
        del sc
        del row


class Remove(object):
    """Implementation for AP_Zoom_addin.button_1 (Button)"""
    def __init__(self):
        self.enabled = True
        self.checked = False
    def onClick(self):

        #set the map document reference
        mxd = arcpy.mapping.MapDocument("CURRENT")
        for df in arcpy.mapping.ListDataFrames(mxd):
            for lyr in arcpy.mapping.ListLayers(mxd, "AP_Map_Numbers", df):
                #create a search cursor to get relevant information about a parcel
                sc = arcpy.SearchCursor(lyr)
                for row in sc:
                    #select the relevant fields to be put on the map
                    ap = row.getValue("MAP_NUMBER")
                    removeLayer = arcpy.mapping.Layer(ap)
                    arcpy.mapping.RemoveLayer(df, removeLayer)
                if lyr.isFeatureLayer:
                    arcpy.SelectLayerByAttribute_management(lyr, "CLEAR_SELECTION")
                    df.extent = lyr.getSelectedExtent()
                    df.scale *= 1.5
        arcpy.RefreshActiveView()