/***********************************************************************
*  EXP.JS
*
*  by Brent Gustafson - (C) 2002 walkerart.org
***********************************************************************/


var rand = (Math.round(Math.random() * 3215031751) % 6);
var lastHilite = 8;
var lastSlide = 1;
     	
function changeHilite(div) {
  if (div) {
	if (lastHilite) { 
		document.getElementById("hl" + lastHilite).style.backgroundColor = "#74A2BC";
		document.getElementById("hilite" + lastHilite).style.display = "none";
	}
	document.getElementById("hl" + div).style.backgroundColor = "#CC0000";
	document.getElementById("hilite" + div).style.display = "block";
	lastHilite = div;
  }
}


function changeSlide(div) {
  if (div) {
	if (lastSlide) {
		var prevNavPath = "/images/img_" + lastSlide + "_off.gif";
		var prevNavObj  = eval("document.img" + lastSlide);
		prevNavObj.src = prevNavPath;
		document.getElementById("slide" + lastSlide).style.display = "none";
	}
	var navPath = "/images/img_" + div + "_on.gif";
	var navObj  = eval("document.img" + div);
	navObj.src = navPath;
	document.getElementById("slide" + div).style.display = "block";
	
	lastSlide = div;
  }
}


function makeShots() {
	if (rand == 3) rand++;
	document.shot1.src = "images/shot_" + rand + ".jpg"; rand++;
	if (rand == 3) rand++;
	document.shot2.src = "images/shot_" + rand + ".jpg"; rand++;
	if (rand == 3) rand++;
	document.shot3.src = "images/shot_" + rand + ".jpg";
}


function makeTimeline(){
	var prev = new Date("January 1, 2000");
	var now = new Date();
	var future = new Date("January 1, 2005");
	var spanTotal = future - prev;
	var spanPast = now - prev;
	var perPast = spanPast/spanTotal;
	var tlLength = Math.round(755 * perPast);
	
	if (tlLength > 755) tlLength = 755;
	document.getElementById("tlBar").style.width = tlLength + "px";
}


function init() {
	makeShots();
	//makeTimeline();
	changeHilite(lastHilite);
}