/* --------------------------------------------------------------------
   NAV BAR STYLES
------------------------------------------------------------------*/

/* link heights corresponds with image height */
.nav_bu, .nav_bu:visited
{
	height: 24px;
	position: relative !important;
}

/* link and list-item widths correspond with image widths */
#nav_soc, #nav_bu_soc, #nav_bu_soc:visited { width: 133px; }
#nav_mag, #nav_bu_mag, #nav_bu_mag:visited { width: 154px; }
#nav_sto, #nav_bu_sto, #nav_bu_sto:visited { width: 117px; }
#nav_new, #nav_bu_new, #nav_bu_new:visited { width: 204px; }
#nav_edu, #nav_bu_edu, #nav_bu_edu:visited { width: 159px; }

/* span is same dimensions as link and positioned to superimpose */
.nav_bu span, .nav_bu:visited span
{
	display: block;
	height: 24px;
	width: 100%;
	position: absolute;
	left: 0;
	top: 0;
	z-index: 1;
	background-repeat: no-repeat;
}

/* NAV BAR BASE IMAGES button images are span background images */
#nav_bu_soc span, #nav_bu_soc:visited span { background-image: url(images_sub_common/sub_nav_society.gif); }
#nav_bu_mag span, #nav_bu_mag:visited span { background-image: url(images_sub_common/sub_nav_mag.gif); }
#nav_bu_sto span, #nav_bu_sto:visited span { background-image: url(images_sub_common/sub_nav_store.gif); }
#nav_bu_new span, #nav_bu_new:visited span { background-image: url(images_sub_common/sub_nav_news.gif); }
#nav_bu_edu span, #nav_bu_edu:visited span { background-image: url(images_sub_common/sub_nav_educ.gif); }

/* IMAGE ROLLOVERS - BACKGROUND IMAGE */
#nav_bu_soc span, #nav_bu_soc:visited span { background-image: url(images_sub_common/sub_nav_society.gif); }
#nav_bu_soc:hover span, #nav_bu_soc:focus span, #nav_bu_soc:visited:hover span, #nav_bu_soc.udmR span, #nav_bu_soc.udmR:visited span, #nav_bu_soc:active span { background-image: url(images_sub_common/sub_nav_society_over.gif); }
#nav_bu_mag span, #nav_bu_mag:visited span { background-image: url(images_sub_common/sub_nav_mag.gif); }
#nav_bu_mag:hover span, #nav_bu_mag:focus span, #nav_bu_mag:visited:hover span, #nav_bu_mag.udmR span, #nav_bu_mag.udmR:visited span, #nav_bu_mag:active span { background-image: url(images_sub_common/sub_nav_mag_over.gif); }
#nav_bu_sto span, #nav_bu_sto:visited span { background-image: url(images_sub_common/sub_nav_store.gif); }
#nav_bu_sto:hover span, #nav_bu_sto:focus span, #nav_bu_sto:visited:hover span, #nav_bu_sto.udmR span, #nav_bu_sto.udmR:visited span, #nav_bu_sto:active span { background-image: url(images_sub_common/sub_nav_store_over.gif); }
#nav_bu_new span, #nav_bu_new:visited span { background-image: url(images_sub_common/sub_nav_news.gif); }
#nav_bu_new:hover span, #nav_bu_new:focus span, #nav_bu_new:visited:hover span, #nav_bu_new.udmR span, #nav_bu_new.udmR:visited span, #nav_bu_new:active span { background-image: url(images_sub_common/sub_nav_news_over.gif); }
#nav_bu_edu span, #nav_bu_edu:visited span { background-image: url(images_sub_common/sub_nav_educ.gif); }
#nav_bu_edu:hover span, #nav_bu_edu:focus span, #nav_bu_edu:visited:hover span, #nav_bu_edu.udmR span, #nav_bu_edu.udmR:visited span, #nav_bu_edu:active span { background-image: url(images_sub_common/sub_nav_educ_over.gif); }