var oldnavsrc = '';

		

		function rollon(section) {

			var section = 'topnav_' + section;

			var img = document.images[section];

			oldnavsrc = img.src;

			img.src = '/images/' + section + '_on.gif';

			

		}

		

		function rollout(section) {

			var section = 'topnav_' + section;

			var img = document.images[section];

			img.src = oldnavsrc;

		}

		

		var oldnavcolor = '';

					

		function navover(content) {

			var navitem = document[content];

			oldnavcolor = navitem.style.backgroundColor;

			navitem.style.backgroundColor = '7a7a7a';

		}

		

		function navout(content) {

			var navitem = document[content];

			navitem.style.backgroundColor = oldnavcolor;

		}

        

        function init(section) {

    		navimage = new Image(); 

    		navimage.src = "/img/topnav_basic_on.gif";

    		navimage.src = "/img/topnav_advanced_on.gif";

    		navimage.src = "/img/topnav_tools_on.gif";

    		navimage.src = "/img/topnav_status_on.gif";

    		navimage.src = "/img/topnav_help_on.gif";

            

            if (document.images['topnav_' + section]) {

    			document.images['topnav_' + section].src = '/images/topnav_' + section + '_on.gif';

			    }

		}