.menu_btn {
	float: left;
	height:35px;
	display:block;
	}

#menu_btn_hem {
	background-image: url('top/hem_off.png');
	width:49px;	}
#menu_btn_hem:hover {
	background-image: url('top/hem_on.png'); }

#menu_btn_3d{
	background-image: url('top/3d-cad_off.png'); 
	width: 80px;
	}
#menu_btn_3d:hover {
	background-image: url('top/3d-cad_on.png');	}

#menu_btn_foto {
	background-image: url('top/foto_off.png');
	width:50px;
	}
#menu_btn_foto:hover {
	background-image: url('top/foto_on.png');
	}

#menu_btn_objekt {
	background-image: url('top/objekt_off.png');
	width:68px;
	}
#menu_btn_objekt:hover {
	background-image: url('top/objekt_on.png');
	}

#menu_btn_blandat{
	background-image: url('top/blandat_off.png');
	width:76px;
	}
#menu_btn_blandat:hover {
	background-image: url('top/blandat_on.png');
	}

#menu_btn_cv{
	background-image: url('top/cv_off.png');
	width:49px;	
	}
#menu_btn_cv:hover {
	background-image: url('top/cv_on.png');
	}

#menu_btn_kontakt{
	background-image: url('top/kontakt_off.png');
	width:77px;
	}
#menu_btn_kontakt:hover {
	background-image: url('top/kontakt_on.png');
	}

#menu_btn_inenglish{
	background-image: url('top/inenglish_off.png');
	width:98px;
	}
#menu_btn_inenglish:hover {
	background-image: url('top/inenglish_on.png');
	}