var main_pic_id = -1; //Initialization

var pic = new Array();
var caption = new Array();

pic = [
	   "/pics/home_page/white_house_dc_jam.jpg",
	   "/pics/home_page/btd6students.JPG",
	   "/pics/home_page/btd6students2.JPG",
	   "/pics/home_page/btd6students3.JPG",
	   "/pics/home_page/participants7s.JPG",
	   "/pics/home_page/participants7s2.JPG",
   	   "/pics/home_page/sym_7_all.jpg",
	   "/pics/home_page/sym_7_first_place.jpg",
	   "/pics/home_page/sym_7_second_place.jpg",
	   "/pics/home_page/sym_7_third_place.jpg",  
	   "/pics/home_page/btd2_group.jpg", 
	   "/pics/home_page/btd5_group.jpg", 
	   "/pics/home_page/btd4_group.jpg", 
	   "/pics/home_page/pvamu_ee.jpg"   
	   ];
	   
caption = [
		  "View of The White House from the NSF Jam Session (06/2009)",
		  "BTD 6 Students",
		  "BTD 6 Students",
		  "BTD 6 Students",
		  "Participants from the 7th Annual Symposium",
		  "Participants from the 7th Annual Symposium",
		  "Participants from the 7th Annual Symposium",
		  "Natividad Fuentes (TAMUCC) - 1st place (7th Annual Symposium)",
		  "Asha Hobbs (PVAMU) and Trent Johnson (PVAMU) - 2nd place (7th Annual Symposium)",
		  "Alexis Crawford (PVAMU), Amanda Whitmaill (TAMUCC) and Timothy Omoniyi (TAMU) - 3rd place (7th Annual Symposium)",
		  "BTD II Students", 
		  "BTD V Students (TAMU)",
		  "BTD IV Students (TAMU)",
		  "Prairie View A&M Campus"
		   ];

var num_pics = pic.length;

//Slide show
var timeDelay = 5; // change delay time in seconds
timeDelay = timeDelay*1000;
var PicCurrentNum = 0;
var PicCurrent = new Image();
PicCurrent.src = pic[PicCurrentNum];
function startPix() {
setInterval("slideshow()", timeDelay);
}
function slideshow() {
	fadein();
	PicCurrentNum++;
	if (PicCurrentNum == num_pics) {
		PicCurrentNum = 0;
	}
	fadein();
	PicCurrent.src = pic[PicCurrentNum];
	document["ChangingPix"].src = PicCurrent.src;
	document.getElementById("main_pic").alt = caption[PicCurrentNum];
	document.getElementById("main_caption").innerHTML = caption[PicCurrentNum];

}

function fadeout(){
	
	var t = setTimeout("document.getElementById('main_pic').style.filter='alpha(opacity=100)'; document.getElementById('main_pic').style.opacity=1.0",50);	
	var t = setTimeout("document.getElementById('main_pic').style.filter='alpha(opacity=95)'; document.getElementById('main_pic').style.opacity=.95",100);
	var t = setTimeout("document.getElementById('main_pic').style.filter='alpha(opacity=90)'; document.getElementById('main_pic').style.opacity=.90",150);
	var t = setTimeout("document.getElementById('main_pic').style.filter='alpha(opacity=85)'; document.getElementById('main_pic').style.opacity=.85",200);
	var t = setTimeout("document.getElementById('main_pic').style.filter='alpha(opacity=80)'; document.getElementById('main_pic').style.opacity=.80",250);
	var t = setTimeout("document.getElementById('main_pic').style.filter='alpha(opacity=75)'; document.getElementById('main_pic').style.opacity=.75",300);	
	var t = setTimeout("document.getElementById('main_pic').style.filter='alpha(opacity=70)'; document.getElementById('main_pic').style.opacity=.70",350);
	var t = setTimeout("document.getElementById('main_pic').style.filter='alpha(opacity=65)'; document.getElementById('main_pic').style.opacity=.65",400);
	var t = setTimeout("document.getElementById('main_pic').style.filter='alpha(opacity=60)'; document.getElementById('main_pic').style.opacity=.60",450);
	var t = setTimeout("document.getElementById('main_pic').style.filter='alpha(opacity=55)'; document.getElementById('main_pic').style.opacity=.55",500);
	var t = setTimeout("document.getElementById('main_pic').style.filter='alpha(opacity=50)'; document.getElementById('main_pic').style.opacity=.50",550);

 }

function fadein(){
	var t = setTimeout("document.getElementById('main_pic').style.filter='alpha(opacity=50)'; document.getElementById('main_pic').style.opacity=.50",50);	
	var t = setTimeout("document.getElementById('main_pic').style.filter='alpha(opacity=55)'; document.getElementById('main_pic').style.opacity=.55",100);
	var t = setTimeout("document.getElementById('main_pic').style.filter='alpha(opacity=60)'; document.getElementById('main_pic').style.opacity=.60",150);
	var t = setTimeout("document.getElementById('main_pic').style.filter='alpha(opacity=65)'; document.getElementById('main_pic').style.opacity=.65",200);
	var t = setTimeout("document.getElementById('main_pic').style.filter='alpha(opacity=70)'; document.getElementById('main_pic').style.opacity=.70",250);	
	var t = setTimeout("document.getElementById('main_pic').style.filter='alpha(opacity=75)'; document.getElementById('main_pic').style.opacity=.75",300);
	var t = setTimeout("document.getElementById('main_pic').style.filter='alpha(opacity=80)'; document.getElementById('main_pic').style.opacity=.80",350);
	var t = setTimeout("document.getElementById('main_pic').style.filter='alpha(opacity=85)'; document.getElementById('main_pic').style.opacity=.85",400);
	var t = setTimeout("document.getElementById('main_pic').style.filter='alpha(opacity=90)'; document.getElementById('main_pic').style.opacity=.90",450);
	var t = setTimeout("document.getElementById('main_pic').style.filter='alpha(opacity=95)'; document.getElementById('main_pic').style.opacity=.95",500);
	var t = setTimeout("document.getElementById('main_pic').style.filter='alpha(opacity=100)'; document.getElementById('main_pic').style.opacity=1.0",550);
	
	var z = setTimeout("fadeout()",(timeDelay-550));
}