function imgchg1(){document.button1.src = "images/menu_whats_hover.gif"}
function imgchg2(){document.button1.src = "images/menu_whats_out.gif"}

function imgchg3(){document.button2.src = "images/menu_products_hover.gif"}
function imgchg4(){document.button2.src = "images/menu_products_out.gif"}

function imgchg5(){document.button3.src = "images/menu_case_hover.gif"}
function imgchg6(){document.button3.src = "images/menu_case_out.gif"}

function imgchg7(){document.button4.src = "images/menu_manual_hover.gif"}
function imgchg8(){document.button4.src = "images/menu_manual_out.gif"}

function imgchg9(){document.button5.src = "images/goto-contact_hover.gif"}
function imgchg10(){document.button5.src = "images/goto-contact_out.gif"}

function imgchg11(){document.button6.src = "images/flamebeater_hover.jpg"}
function imgchg12(){document.button6.src = "images/flamebeater_out.jpg"}

function imgchg13(){document.button7.src = "images/basic_hover.jpg"}
function imgchg14(){document.button7.src = "images/basic_out.jpg"}

function imgchg15(){document.button8.src = "images/metalgrip_hover.jpg"}
function imgchg16(){document.button8.src = "images/metalgrip_out.jpg"}

function imgchg17(){document.button9.src = "images/foam_hover.jpg"}
function imgchg18(){document.button9.src = "images/foam_out.jpg"}

function imgchg19(){document.button10.src = "images/menu_flamebeater_hover.jpg"}
function imgchg20(){document.button10.src = "images/menu_flamebeater_out.jpg"}

function imgchg21(){document.button11.src = "images/menu_basic_hover.jpg"}
function imgchg22(){document.button11.src = "images/menu_basic_out.jpg"}

function imgchg23(){document.button12.src = "images/menu_metalgrip_hover.jpg"}
function imgchg24(){document.button12.src = "images/menu_metalgrip_out.jpg"}

function imgchg25(){document.button13.src = "images/menu_foam_hover.jpg"}
function imgchg26(){document.button13.src = "images/menu_foam_out.jpg"}

function imgchg27(){document.button14.src = "products/flamebeater/images/oem-button_hover.gif"}
function imgchg28(){document.button14.src = "products/flamebeater/images/oem-button_out.gif"}

function imgchg29(){document.button15.src = "images/shop-button_hover.gif"}
function imgchg30(){document.button15.src = "images/shop-button_out.gif"}

function imgchg31(){document.button16.src = "images/others_hover.jpg"}
function imgchg32(){document.button16.src = "images/others_out.jpg"}

function imgchg33(){document.button17.src = "images/goods_hover.jpg"}
function imgchg34(){document.button17.src = "images/goods_out.jpg"}

function imgchg35(){document.button18.src = "images/shop-button2_hover.gif"}
function imgchg36(){document.button18.src = "images/shop-button2_out.gif"}

function imgchg37(){document.button19.src = "images/menu_others_hover.jpg"}
function imgchg38(){document.button19.src = "images/menu_others_out.jpg"}

function imgchg39(){document.button20.src = "images/menu_goods_hover.jpg"}
function imgchg40(){document.button20.src = "images/menu_goods_out.jpg"}