#link_zblog, #link_events, #link_newsletter
{
	height: 29px;
}

#link_zblog
{
	background: transparent url(../images/btn_top-nav_zblog.jpg) no-repeat;
	width: 135px;
}

#link_zblog:hover, #link_zblog.current_page
{
	background: transparent url(images/btn_top-nav_over_zblog.jpg) no-repeat;
}

#link_events
{
	background: transparent url(images/btn_top-nav_events.jpg) no-repeat;
	width: 147px;
}

#link_events:hover, #link_events.current_page
{
	background: transparent url(images/btn_top-nav_over_events.jpg) no-repeat;
}

#link_newsletter
{
	background: transparent url(images/btn_top-nav_newsletter.jpg) no-repeat;
	width: 155px;
}

#link_newsletter:hover, #link_newsletter.current_page
{
	background: transparent url(images/btn_top-nav_over_newsletter.jpg) no-repeat;
}

#link_about
{
	background: transparent url(images/btn_nav_about-zhome.jpg) no-repeat;
	width: 126px;
}

#link_about:hover, #link_about.current_page
{
	background: transparent url(images/btn_nav_over_about-zhome.jpg) no-repeat;
}

#link_benchmarks
{
	background: transparent url(images/btn_nav_benchmarks.jpg) no-repeat;
	width: 114px;
}

#link_benchmarks:hover, #link_benchmarks.current_page
{
	background: transparent url(images/btn_nav_over_benchmarks.jpg) no-repeat;
}

#link_dig
{
	background: transparent url(images/btn_nav_dig-deeper.jpg) no-repeat;
	width: 108px;
}

#link_dig:hover, #link_dig.current_page
{
	background: transparent url(images/btn_nav_over_dig-deeper.jpg) no-repeat;
}

#link_green
{
	background: transparent url(images/btn_nav_green-your-home.jpg) no-repeat;
	width: 154px;
}

#link_green:hover, #link_green.current_page
{
	background: transparent url(images/btn_nav_over_green-your-home.jpg) no-repeat;
}

#link_home
{
	background: transparent url(images/btn_nav_home.jpg) no-repeat;
	width: 75px;
}

#link_home:hover, #link_home.current_page
{
	background: transparent url(images/btn_nav_over_home.jpg) no-repeat;
}

#link_who
{
	background: transparent url(images/btn_nav_whos-behind-it.jpg) no-repeat;
	width: 143px;
}

#link_who:hover, #link_who.current_page
{
	background: transparent url(images/btn_nav__over_whos-behind-it.jpg) no-repeat;
}

#link_why
{
	background: transparent url(images/btn_nav_why-green-homes.jpg) no-repeat;
	width: 169px;
}

#link_why:hover, #link_why.current_page
{
	background: transparent url(images/btn_nav_over_why-green-homes.jpg) no-repeat;
}