// JavaScript Document
function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}
function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

var timeout = 500;
var closetimer = 0;

var imgsA = new Array('images/alum1.jpg','images/alum2.jpg','images/alum3.jpg','images/alum4.jpg','images/alum5.jpg','images/alum6.jpg','images/alum7.jpg','images/alum8.jpg','images/alum9.jpg','images/alum10.jpg','images/alum11.jpg','images/alum12.jpg');
var imgsB = new Array('images/alum2.jpg','images/alum3.jpg','images/alum4.jpg','images/alum5.jpg','images/alum6.jpg','images/alum7.jpg','images/alum8.jpg','images/alum9.jpg','images/alum10.jpg','images/alum11.jpg','images/alum12.jpg','images/alum1.jpg');
var imgsC = new Array('images/alum3.jpg','images/alum4.jpg','images/alum5.jpg','images/alum6.jpg','images/alum7.jpg','images/alum8.jpg','images/alum9.jpg','images/alum10.jpg','images/alum11.jpg','images/alum12.jpg','images/alum1.jpg','images/alum2.jpg');
var imgsD = new Array('images/alum4.jpg','images/alum5.jpg','images/alum6.jpg','images/alum7.jpg','images/alum8.jpg','images/alum9.jpg','images/alum10.jpg','images/alum11.jpg','images/alum12.jpg','images/alum1.jpg','images/alum2.jpg','images/alum3.jpg');

var delay = 5000;
var counterA = -1;
var counterB = -1;
var counterC = -1;
var counterD = -1;

var subcounterA = 0;
var subcounterB = 0;
var subcounterC = 0;
var subcounterD = 0;


function preloadImgs(){
  for(var i=0;i<imgsA.length;i++){
    MM_preloadImages(imgsA[i]);
  }
}

function randomImages(){
  if(counterA == (10)){
    counterA = -1;
  }
  if(counterB == (10)){
    counterB = -1;
  }
  if(counterC == (10)){
    counterC = -1;
  }
  if(counterD == (10)){
    counterD = -1;
  }
  
  subcounterA++;
  subcounterB++;   
  subcounterC++;   
  subcounterD++;   

  if(subcounterA==1) {
    MM_swapImage('rotator1', '', imgsA[counterA+1]);
	subcounterA = 0;
	counterA++;
  }
  if(subcounterB==1) {
    MM_swapImage('rotator2', '', imgsB[counterB+1]);
	subcounterB = 0;
	counterB++;
  }
  if(subcounterC==1) {
    MM_swapImage('rotator3', '', imgsC[counterC+1]);
	subcounterC = 0;
	counterC++;
  } 
  if(subcounterD==1) {
    MM_swapImage('rotator4', '', imgsD[counterD+1]);
	subcounterD = 0;
	counterD++;
  } 
    
  setTimeout('randomImages()', delay);
}

function getLargeImage(ref) {
  if (ref == 1) {
    var image = document.getElementById('rotator1');
    var image_src = image.src;
    var new_image_src = image_src.replace(".jpg", "-lg.jpg");
	var str_index = new_image_src.indexOf("alum");
	var str = new_image_src.substr(str_index);
	var new_link = "view.php?ref=" + str;
	window.open(new_link); 
  }
  if (ref == 2) {
    var image = document.getElementById('rotator2');
    var image_src = image.src;
    var new_image_src = image_src.replace(".jpg", "-lg.jpg");
	var str_index = new_image_src.indexOf("alum");
	var str = new_image_src.substr(str_index);
	var new_link = "view.php?ref=" + str;
	window.open(new_link); 
  }
  if (ref == 3) {
    var image = document.getElementById('rotator3');
    var image_src = image.src;
    var new_image_src = image_src.replace(".jpg", "-lg.jpg");
	var str_index = new_image_src.indexOf("alum");
	var str = new_image_src.substr(str_index);
	var new_link = "view.php?ref=" + str;
	window.open(new_link); 
  }
  if (ref == 4) {
    var image = document.getElementById('rotator4');
    var image_src = image.src;
    var new_image_src = image_src.replace(".jpg", "-lg.jpg");
	var str_index = new_image_src.indexOf("alum");
	var str = new_image_src.substr(str_index);
	var new_link = "view.php?ref=" + str;
	window.open(new_link); 
  }
}

function getDropDown() {
  var x = document.getElementById("pulldown");
  x.style.visibility = "visible";
}

function removeDropDown() {
  var x = document.getElementById("pulldown");
  x.style.visibility = "hidden";
}

function closetime() {
	closetimer = window.setTimeout(removeDropDown, timeout);
}

function cancelclosetime() {
	if(closetimer)
	{
		window.clearTimeout(closetimer);
		closetimer = null;
	}
}