if (document.images) {
	button_a = new Image
	button_a_roll = new Image
	button_b = new Image
	button_b_roll = new Image
	button_c = new Image
	button_c_roll = new Image
	button_d = new Image
	button_d_roll = new Image
	button_e = new Image
	button_e_roll = new Image
	button_f = new Image
	button_f_roll = new Image
	button_f2 = new Image
	button_f2_roll = new Image
	button_g = new Image
	button_g_roll = new Image
	button_h = new Image
	button_h_roll = new Image
	button_i = new Image
	button_i_roll = new Image
	button_j = new Image
	button_j_roll = new Image
	button_k = new Image
	button_k_roll = new Image
	button_x = new Image
	button_x_roll = new Image
	button_xx = new Image
	button_xx_roll = new Image

	button_a.src = "images/button_a.gif"
	button_a_roll.src = "images/button_a_roll.gif"
	button_b.src = "images/button_b.gif"
	button_b_roll.src = "images/button_b_roll.gif"
	button_c.src = "images/button_c.gif"
	button_c_roll.src = "images/button_c_roll.gif"
	button_d.src = "images/button_d.gif"
	button_d_roll.src = "images/button_d_roll.gif"
	button_e.src = "images/button_e.gif"
	button_e_roll.src = "images/button_e_roll.gif"
	button_f.src = "images/button_f.gif"
	button_f_roll.src = "images/button_f_roll.gif"
	button_f2.src = "images/button_f2.gif"
	button_f2_roll.src = "images/button_f2_roll.gif"
	button_g.src = "images/button_g.gif"
	button_g_roll.src = "images/button_g_roll.gif"
	button_h.src = "images/button_h.gif"
	button_h_roll.src = "images/button_h_roll.gif"
	button_i.src = "images/button_i.gif"
	button_i_roll.src = "images/button_i_roll.gif"
	button_j.src = "images/button_j.gif"
	button_j_roll.src = "images/button_j_roll.gif"
	button_k.src = "images/button_k.gif"
	button_k_roll.src = "images/button_k_roll.gif"
	button_x.src = "images/button_x.gif"
	button_x_roll.src = "images/button_x_roll.gif"
	button_xx.src = "images/button_xx.gif"
	button_xx_roll.src = "images/button_xx_roll.gif"
	}
	
else {
	button_a = ""
	button_a_roll = ""
	button_b = ""
	button_b_roll = ""
	button_c = ""
	button_c_roll = ""
	button_d = ""
	button_d_roll = ""
	button_e = ""
	button_e_roll = ""
	button_f = ""
	button_f_roll = ""
	button_f2 = ""
	button_f2_roll = ""
	button_g = ""
	button_g_roll = ""
	button_h = ""
	button_h_roll = ""
	button_i = ""
	button_i_roll = ""
	button_j = ""
	button_j_roll = ""
	button_k = ""
	button_k_roll = ""
	button_x = ""
	button_x_roll = ""
	button_xx = ""
	button_xx_roll = ""
	}