.main_bg {

 background-image:url(http://agroplus-group.ru/nutriteh/userfiles/image/gradient.gif);
 background-repeat: repeat-x;
 background-position: top left;
}

.logo_bg {

 background-image:url(http://agroplus-group.ru/nutriteh/userfiles/image/logo_bg_right_btm.gif);
 background-repeat: no-repeat;
 background-position: bottom right;
}