// ROLLOVER/POPUP STUFF
var imageArr = new Array();
imageArr['program0'] = new Image(96,47);
imageArr['program0'].src = "images/home/btn_program.png";
imageArr['program1'] = new Image(96,47);
imageArr['program1'].src = "images/home/btn_program_hi.png";
imageArr['current0'] = new Image(96,47);
imageArr['current0'].src = "images/home/btn_current.png";
imageArr['current1'] = new Image(96,47);
imageArr['current1'].src = "images/home/btn_current_hi.png";
imageArr['alumni0'] = new Image(96,47);
imageArr['alumni0'].src = "images/home/btn_alumni.png";
imageArr['alumni1'] = new Image(96,47);
imageArr['alumni1'].src = "images/home/btn_alumni_hi.png";
imageArr['students0'] = new Image(96,47);
imageArr['students0'].src = "images/home/btn_students.png";
imageArr['students1'] = new Image(96,47);
imageArr['students1'].src = "images/home/btn_students_hi.png";
imageArr['awards0'] = new Image(96,47);
imageArr['awards0'].src = "images/home/btn_awards.png";
imageArr['awards1'] = new Image(96,47);
imageArr['awards1'].src = "images/home/btn_awards_hi.png";
imageArr['apply0'] = new Image(96,47);
imageArr['apply0'].src = "images/home/btn_apply.png";
imageArr['apply1'] = new Image(96,47);
imageArr['apply1'].src = "images/home/btn_apply_hi.png";
imageArr['news0'] = new Image(96,47);
imageArr['news0'].src = "images/home/btn_news.png";
imageArr['news1'] = new Image(96,47);
imageArr['news1'].src = "images/home/btn_news_hi.png";


function picOver(picName, onOrOff)
{
	document.images[picName].src= imageArr[picName + onOrOff].src;
}




// ANNOUNCEMENT STUFF

var currentAnnouncement = 0;
var maxAnnouncements = 10;
var announcementRot;
function nextAnnouncement()
{
	currentAnnouncement++;
	if (currentAnnouncement > maxAnnouncements) currentAnnouncement = 1;
	showCurrentAnnouncement();
}

function prevAnnouncement()
{
	currentAnnouncement = currentAnnouncement-1;
	if (currentAnnouncement < 1) currentAnnouncement = maxAnnouncements;
	showCurrentAnnouncement();
}

function showCurrentAnnouncement()
{
	for (i=1;i<=maxAnnouncements;i++)
	{
		document.getElementById("announcement"+i).style.visibility = ((i==currentAnnouncement)?"visible":"hidden");
	}
	document.getElementById("announcementInfo").innerHTML = 'Item <b>' + currentAnnouncement + '</b> of <b>' + maxAnnouncements + '</b>';
}

function randomAnnouncement()
{
    var k = Math.round(Math.random() * maxAnnouncements) + 1;
    if (k != currentAnnouncement) k--;    
    currentAnnouncement = k;
    rotateAnnouncements(); // handle wraparound in weird cases
    
    
}

function rotateAnnouncements()
{
	nextAnnouncement();
	announcementRot = window.setTimeout("rotateAnnouncements()",6000);
}

// BLOG STUFF
var collapsedImage = new Image(10,10);
		  var openedImage=  new Image(10,10);
		  collapsedImage.src = "images/home/collapsed.gif";
		  openedImage.src = "images/home/opened.gif";
			
			function toggleDiv(blockNumber)
			{
				var showDiv = (document.getElementById("descriptionBody"+blockNumber).style.display == "none");
				
				collapseAllBlocks();
				if (showDiv)
				{
				//	document.getElementById("descriptionBody"+blockNumber).style.visibility = "visible";
					document.getElementById("descriptionBody"+blockNumber).style.display = "block";
					document.images['collapsor'+blockNumber].src = openedImage.src;
				}
			}
			
			function collapseAllBlocks()
			{
				for (i =1;i<=numberOfBlocks;i++)
				{
//					document.getElementById("descriptionBody"+i).style.visibility = "hidden";
					document.getElementById("descriptionBody"+i).style.display = "none";
					document.images['collapsor'+i].src = collapsedImage.src;
				}
			}