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
	main = new Image
	main_a = new Image
	main_b = new Image
	main_c = new Image
	main_d = new Image
	main_e = new Image
	main_f = new Image
	main_g = new Image

	button_a.src = "images2/button_a.gif"
	button_a_roll.src = "images2/button_a_roll.gif"
	button_b.src = "images2/button_b.gif"
	button_b_roll.src = "images2/button_b_roll.gif"
	button_c.src = "images2/button_c.gif"
	button_c_roll.src = "images2/button_c_roll.gif"
	button_d.src = "images2/button_d.gif"
	button_d_roll.src = "images2/button_d_roll.gif"
	button_e.src = "images2/button_e.gif"
	button_e_roll.src = "images2/button_e_roll.gif"
	button_f.src = "images2/button_f.gif"
	button_f_roll.src = "images2/button_f_roll.gif"
	button_g.src = "images2/button_g.gif"
	button_g_roll.src = "images2/button_g_roll.gif"
	main.src = "images2/main_c.jpg"
	main_a.src = "images2/main_a.jpg"
	main_b.src = "images2/main_b.jpg"
	main_c.src = "images2/main.jpg"
	main_d.src = "images2/main_d.jpg"
	main_e.src = "images2/main_e.jpg"
	main_f.src = "images2/main_f.jpg"
	main_g.src = "images2/main_g.jpg"
	}
	
	
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_g = ""
	button_g_roll = ""
	main = ""
	main_a = ""
	main_b = ""
	main_c = ""
	main_d = ""
	main_e = ""
	main_f = ""
	main_g = ""
	}
	
	
function over1() {
	document.ba.src=button_a_roll.src
	document.main.src=main_a.src
	
	}
	
function out1() {
	document.ba.src=button_a.src
	document.main.src=main.src
	
	}

function over2() {
	document.bb.src=button_b_roll.src
	document.main.src=main_b.src
	
	}
	
function out2() {
	document.bb.src=button_b.src
	document.main.src=main.src
	
	}

function over3() {
	document.bc.src=button_c_roll.src
	document.main.src=main_c.src
	
	}
	
function out3() {
	document.bc.src=button_c.src
	document.main.src=main.src
	
	}

function over4() {
	document.bd.src=button_d_roll.src
	document.main.src=main_d.src
	
	}
	
function out4() {
	document.bd.src=button_d.src
	document.main.src=main.src
	
	}

function over5() {
	document.be.src=button_e_roll.src
	document.main.src=main_e.src
	
	}
	
function out5() {
	document.be.src=button_e.src
	document.main.src=main.src
	
	}

function over6() {
	document.bf.src=button_f_roll.src
	document.main.src=main_f.src
	
	}
	
function out6() {
	document.bf.src=button_f.src
	document.main.src=main.src
	
	}

function over7() {
	document.bg.src=button_g_roll.src
	document.main.src=main_g.src
	
	}
	
function out7() {
	document.bg.src=button_g.src
	document.main.src=main.src
	
	}