#menu_level1 {
	float: left;
	list-style: none;
	margin: 0;
	padding: 0;
	width: 555px;
}

#menu_level1 li {
	float: left;
	margin: 0;
	padding: 0;
}

#menu_level1 a {
	display: block;
	float: left;
	margin: 0;
}

#menu_level1 a#home {
    width: 46px;
    height: 30px;
    background-image: url(../images/buttons/home_off.gif);
    background-repeat: no-repeat;
}

#menu_level1 a#home:hover {
    width: 46px;
    height: 30px;
    background-image: url(../images/buttons/home_on.gif);
    background-repeat: no-repeat;
}

#menu_level1 a#service {
    width: 62px;
    height: 30px;
    background-image: url(../images/buttons/service_off.gif);
    background-repeat: no-repeat;
}

#menu_level1 a#service:hover {
    width: 62px;
    height: 30px;
    background-image: url(../images/buttons/service_on.gif);
    background-repeat: no-repeat;
}

#menu_level1 a#applications {
    width: 95px;
    height: 30px;
    background-image: url(../images/buttons/applications_off.gif);
    background-repeat: no-repeat;
}

#menu_level1 a#applications:hover {
    width: 95px;
    height: 30px;
    background-image: url(../images/buttons/applications_on.gif);
    background-repeat: no-repeat;
}

#menu_level1 a#space_segment {
    width: 106px;
    height: 30px;
    background-image: url(../images/buttons/space_segment_off.gif);
    background-repeat: no-repeat;
}

#menu_level1 a#space_segment:hover {
    width: 106px;
    height: 30px;
    background-image: url(../images/buttons/space_segment_on.gif);
    background-repeat: no-repeat;
}

#menu_level1 a#ground_segment {
    width: 115px;
    height: 30px;
    background-image: url(../images/buttons/ground_segment_off.gif);
    background-repeat: no-repeat;
}

#menu_level1 a#ground_segment:hover {
    width: 115px;
    height: 30px;
    background-image: url(../images/buttons/ground_segment_on.gif);
    background-repeat: no-repeat;
}

#menu_level1 a#news {
    width: 46px;
    height: 30px;
    background-image: url(../images/buttons/news_off.gif);
    background-repeat: no-repeat;
}

#menu_level1 a#news:hover {
    width: 46px;
    height: 30px;
    background-image: url(../images/buttons/news_on.gif);
    background-repeat: no-repeat;

}

#menu_level1 a#contactus {
    width: 85px;
    height: 30px;
    background-image: url(../images/buttons/contact_us_off.gif);
    background-repeat: no-repeat;
}

#menu_level1 a#contactus:hover {
    width: 85px;
    height: 30px;
    background-image: url(../images/buttons/contact_us_on.gif);
    background-repeat: no-repeat;
}

#index_pg #hdr #menu #home {
    width: 46px;
    height: 30px;
    background-image: url(../images/buttons/home_on.gif);
    background-repeat: no-repeat;
}

#service_pg #hdr #menu #service {
    width: 62px;
    height: 30px;
    background-image: url(../images/buttons/service_on.gif);
    background-repeat: no-repeat;
}

#applications_pg #hdr #menu #applications {
    width: 95px;
    height: 30px;
    background-image: url(../images/buttons/applications_on.gif);
    background-repeat: no-repeat;
}

#space_segment_pg #hdr #menu #space_segment {
    width: 106px;
    height: 30px;
    background-image: url(../images/buttons/space_segment_on.gif);
    background-repeat: no-repeat;
}

#cassiope_pg #hdr #menu #space_segment {
    width: 106px;
    height: 30px;
    background-image: url(../images/buttons/space_segment_on.gif);
    background-repeat: no-repeat;
}

#ground_segment_pg #hdr #menu #ground_segment {
    width: 115px;
    height: 30px;
    background-image: url(../images/buttons/ground_segment_on.gif);
    background-repeat: no-repeat;
}

#news_pg #hdr #menu #news {
    width: 46px;
    height: 30px;
    background-image: url(../images/buttons/news_on.gif);
    background-repeat: no-repeat;
}

#contactus_pg #hdr #menu #contactus {
    width: 85px;
    height: 30px;
    background-image: url(../images/buttons/contact_us_on.gif);
    background-repeat: no-repeat;
}