/*-----------------メインメニュー画像切替-------------------*/
.main_menu_botton{
 border:0px;
 margin:0px 0px 0px 0px;
 padding:0px 0px 0px 0px;
 width:135px;
 height:50px;
 overflow:hidden;
 float:left;
}
.main_menu_botton img {
 visibility:hidden;
}
.main_menu_botton a,
.main_menu_botton a:link,
.main_menu_botton a:visited {
	background-position: 0px 0px;
	float:left;
}
.main_menu_botton a:focus,
.main_menu_botton a:hover,
.main_menu_botton a:active {
	background-position: 0px 50px;
	float:left;
}
/*----------ボタン設定------------*/
.main_menu_botton .menu_1 a{
 background-image:url(./../images/menu/home.gif);
}
.main_menu_botton .menu_1 a#hover{
 background-image:url(./../images/menu/home_hover.gif);
}
.main_menu_botton .menu_2 a{
 background-image:url(./../images/menu/service.gif);
}
.main_menu_botton .menu_2 a#hover{
 background-image:url(./../images/menu/service_hover.gif);
}
.main_menu_botton .menu_3 a{
 background-image:url(./../images/menu/company.gif);
}
.main_menu_botton .menu_3 a#hover{
 background-image:url(./../images/menu/company_hover.gif);
}
.main_menu_botton .menu_4 a{
 background-image:url(./../images/menu/otoia.gif);
}
.main_menu_botton .menu_4 a#hover{
 background-image:url(./../images/menu/otoia_hover.gif);
}

/*-----------------このページの先頭へ画像切替-------------------*/
.gototop_botton{
 border:0px;
 margin:0px 0px 0px 0px;
 padding:0px 0px 0px 0px;
 width:100px;
 height:16px;
 overflow:hidden;
 float:left;
}
.gototop_botton img {
 visibility:hidden;
}
.gototop_botton a,
.gototop_botton a:link,
.gototop_botton a:visited {
	background-position: 0px 0px;
	float:left;
}
.gototop_botton a:focus,
.gototop_botton a:hover,
.gototop_botton a:active {
	background-position: 0px 16px;
	float:left;
}
/*----------ボタン設定------------*/
.gototop_botton .gototop a{
 background-image:url(./../images/menu/gototop.gif);
}