/* Nav:   Home (0) */
a.btn_home{
	display: block;
	cursor: pointer;
	margin: 0 auto;
	position: relative;
	width: 94px; height: 40px;
}
span.btn_home_link{
	display: block;
	position: absolute;
	top: 0; left: 0;
	width: 94px; height: 40px;
	z-index: 0;
}
span.btn_home_hover{
	display: block;
	filter: alpha(opacity=0);
	opacity: 0;
	position: absolute;
	top: 0; left: 0;
	width: 94px; height: 40px;
	z-index: 1;
}
span#btn_alpha_0_link{background:url('../../assets/imgs/Nav_Home.png')}
span#btn_alpha_0_hover{background:url('../../assets/imgs/Nav_Home_ro.png')}

/* Nav:   Clinical Uses  (1) */
a.btn_clinical-uses{
	display: block;
	cursor: pointer;
	margin: 0 auto;
	position: relative;
	width: 154px; height: 40px;
}
span.btn_clinical-uses_link{
	display: block;
	position: absolute;
	top: 0; left: 0;
	width: 154px; height: 40px;
	z-index: 0;
}
span.btn_clinical-uses_hover{
	display: block;
	filter: alpha(opacity=0);
	opacity: 0;
	position: absolute;
	top: 0; left: 0;
	width: 154px; height: 40px;
	z-index: 1;
}
span#btn_alpha_1_link{background:url('../../assets/imgs/Nav_Clinical-Uses.png')}
span#btn_alpha_1_hover{background:url('../../assets/imgs/Nav_Clinical-Uses_ro.png')}

/* Nav:   Products (2) */
a.btn_products{
	display: block;
	cursor: pointer;
	margin: 0 auto;
	position: relative;
	width: 140px; height: 40px;
}
span.btn_products_link{
	display: block;
	position: absolute;
	top: 0; left: 0;
	width: 140px; height: 40px;
	z-index: 0;
}
span.btn_products_hover{
	display: block;
	filter: alpha(opacity=0);
	opacity: 0;
	position: absolute;
	top: 0; left: 0;
	width: 140px; height: 40px;
	z-index: 1;
}
span#btn_alpha_2_link{background:url('../../assets/imgs/Nav_Products.png')}
span#btn_alpha_2_hover{background:url('../../assets/imgs/Nav_Products_ro.png')}

/* Nav:   About Us (3) */
a.btn_about-us{
	display: block;
	cursor: pointer;
	margin: 0 auto;
	position: relative;
	width: 136px; height: 40px;
}
span.btn_about-us_link{
	display: block;
	position: absolute;
	top: 0; left: 0;
	width: 136px; height: 40px;
	z-index: 0;
}
span.btn_about-us_hover{
	display: block;
	filter: alpha(opacity=0);
	opacity: 0;
	position: absolute;
	top: 0; left: 0;
	width: 136px; height: 40px;
	z-index: 1;
}
span#btn_alpha_3_link{background:url('../../assets/imgs/Nav_About-Us.png')}
span#btn_alpha_3_hover{background:url('../../assets/imgs/Nav_About-Us_ro.png')}

/* Nav:   News (4) */
a.btn_news{
	display: block;
	cursor: pointer;
	margin: 0 auto;
	position: relative;
	width: 110px; height: 40px;
}
span.btn_news_link{
	display: block;
	position: absolute;
	top: 0; left: 0;
	width: 110px; height: 40px;
	z-index: 0;
}
span.btn_news_hover{
	display: block;
	filter: alpha(opacity=0);
	opacity: 0;
	position: absolute;
	top: 0; left: 0;
	width: 110px; height: 40px;
	z-index: 1;
}
span#btn_alpha_4_link{background:url('../../assets/imgs/Nav_News.png')}
span#btn_alpha_4_hover{background:url('../../assets/imgs/Nav_News_ro.png')}

/* Nav:   Surgeon Locator (5) */
a.btn_surgeon-locator{
	display: block;
	cursor: pointer;
	margin: 0 auto;
	position: relative;
	width: 204px; height: 40px;
}
span.btn_surgeon-locator_link{
	display: block;
	position: absolute;
	top: 0; left: 0;
	width: 204px; height: 40px;
	z-index: 0;
}
span.btn_surgeon-locator_hover{
	display: block;
	filter: alpha(opacity=0);
	opacity: 0;
	position: absolute;
	top: 0; left: 0;
	width: 204px; height: 40px;
	z-index: 1;
}
span#btn_alpha_5_link{background:url('../../assets/imgs/Nav_Surgeon-Locator.png')}
span#btn_alpha_5_hover{background:url('../../assets/imgs/Nav_Surgeon-Locator_ro.png')}

/* Nav:   Contact Us (6) */
a.btn_contact-us{
	display: block;
	cursor: pointer;
	margin: 0 auto;
	position: relative;
	width: 144px; height: 40px;
}
span.btn_contact-us_link{
	display: block;
	position: absolute;
	top: 0; left: 0;
	width: 144px; height: 40px;
	z-index: 0;
}
span.btn_contact-us_hover{
	display: block;
	filter: alpha(opacity=0);
	opacity: 0;
	position: absolute;
	top: 0; left: 0;
	width: 144px; height: 40px;
	z-index: 1;
}
span#btn_alpha_6_link{background:url('../../assets/imgs/Nav_Contact-Us.png')}
span#btn_alpha_6_hover{background:url('../../assets/imgs/Nav_Contact-Us_ro.png')}