var i=1;
var cur_member = 'member1';
var cur_member_link = 'memberlink1';
var interval = null;

function nextLibrary()
{
 viewLibrary(i,true);
 var info_arr = document.getElementById('library-info').childNodes;
 if (!document.getElementById('memberlink'+(++i))) i=1;
}

function viewLibrary(n,cycle)
{
 i=n;
 if (!cycle && interval) clearInterval(interval);
 if (cur_member) {
	document.getElementById(cur_member).className = null;
	document.getElementById(cur_member_link).className = null;
 }
 cur_member_link = 'memberlink'+i;
 cur_member = 'member'+i;
 document.getElementById(cur_member_link).className = 'on';
 document.getElementById(cur_member).className = 'on'; 
}

function cycleLibraries()
{ 
 nextLibrary();
 if (interval) clearInterval(interval);
 interval = setInterval("nextLibrary()",7000);
}

function searchLibrary() {
	var library = document.getElementById('searchList').selectedIndex;
	if (library != 0) window.open(document.getElementById('searchList')[library].value);
}

var cur_announce = 'announcement1';
var cur_announce_link = 'nav1';

function viewAnnouncement(j) {
	if (cur_announce) {
		document.getElementById(cur_announce).className = null;
		document.getElementById(cur_announce_link).className = null;
	}
	cur_announce = 'announcement'+j;
	cur_announce_link = 'nav'+j;
	document.getElementById(cur_announce).className = 'on';	
	document.getElementById(cur_announce_link).className = 'on';
}