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_g = new Image
		button_g_roll = new Image
		button_h = new Image
		button_h_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_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"
		}
	
	
	else {
		document.button_a = ""
		document.button_a_roll = ""
		document.button_b = ""
		document.button_b_roll = ""
		document.button_c = ""
		document.button_c_roll = ""
		document.button_d = ""
		document.button_d_roll = ""
		document.button_e = ""
		document.button_e_roll = ""
		document.button_f = ""
		document.button_f_roll = ""
		document.button_g = ""
		document.button_g_roll = ""
		document.button_h = ""
		document.button_h_roll = ""
		
		}