def IconImages(self,x,y,w,h):
    self.numbut  = 0
    self.butx = x
    self.buty = y
    self.butwidth = w
    self.butheight = h

def AddIcon(self,img):
    icon = xbmcgui.ControlImage(self.butx + (self.numbut * self.butwidth + self.gap * self.numbut),self.buty,self.butwidth,self.butheight,self.sys.path[0]+'\\Images\\' + img)
    self.addControl(icon)
    self.numbut += 1
    return icon


# Should it be something like?:


def IconImages(self,x,y,w,h,ico=self.sys.path[0]+'\\Images\\myicon.gif'):
    self.numbut  = 0
    self.butx = x
    self.buty = y
    self.butwidth = w
    self.butheight = h
    self.ico = ico

def AddIcon(self,img):
    icon = xbmcgui.ControlImage(self.butx + (self.numbut * self.butwidth + self.gap * self.numbut),self.buty,self.butwidth,self.butheight,self.sys.path[0]+'\\Images\\' + img)
    self.addControl(icon)
    self.numbut += 1
    return icon 



# Referencing your Button secions to get the idea:

def SetupButtons(self,x,y,w,h,a="Vert",f="button-focus.png",nf="button-nofocus.png",gap=0,txtOffSet=0,font='font13'):    
    self.numbut  = 0
    self.butx = x
    self.buty = y
    self.butwidth = w
    self.butheight = h
    self.butalign = a
    self.butfocus_img = f
    self.butnofocus_img = nf
    self.gap = gap
    self.txtOffSet = txtOffSet
    self.font=font
def AddButton(self,text):
    if self.butalign == "Hori":
        c = xbmcgui.ControlButton(self.butx + (self.numbut * self.butwidth + self.gap * self.numbut),self.buty,self.butwidth,self.butheight,text,self.butfocus_img,self.butnofocus_img,textColor=fc)
        self.addControl(c)
    elif self.butalign == "Vert":
        c = xbmcgui.ControlButton(self.butx ,self.buty + (self.numbut * self.butheight + self.gap* self.numbut) ,self.butwidth,self.butheight,text,self.butfocus_img,self.butnofocus_img,textColor=fc)
        self.addControl(c)
    self.numbut += 1
    return c