/*mainmenu script*/
function mouseOut() {
document.getElementById('main_img').style.backgroundPosition='0px 0px';
}
/*each menu script*/
function mOver1() {
document.getElementById('main_img').style.backgroundPosition='0px -350px';
}
function mOver2() {
document.getElementById('main_img').style.backgroundPosition='0px -700px';
}
function mOver3() {
document.getElementById('main_img').style.backgroundPosition='0px -1050px';
}