var homeOn;
var homeOff;
var homeRollover;
var peopleOn;
var peopleOff;
var peopleRollover;
var aboutOn;
var aboutOff;
var aboutRollover;
var reportsOn;
var reportsOff;
var reportsRollover;
var linksOn;
var linksOff;
var linksRollover;
var contactOn;
var contactOff;
var contactRollover;


var currImage;

var pre;
var post;

var ns4;
var ie4;

var screenWidth = 800;
var screenHeight = 600;


	function init(img) {

	   if (document.layers){
	      //Netscape 4 specific code
	      pre = 'document.';
	      post = '';
	   }
	   if (document.getElementById){
	      //Netscape 6 specific code
	      pre = 'document.getElementById("';
	      post = '").style';
	   }
	   if (document.all){
	      //IE4+ specific code
	      pre = 'document.all.';
	      post = '.style';
	   }

	   ns4 = (document.layers)? true:false;
	   ie4 = (document.all)? true:false;

	   homeOn = new Image();
	   homeOn.src = 'images/home_on.jpg';
	   homeOff = new Image();
	   homeOff.src = 'images/home.jpg';
   	   homeRollover = new Image();
	   homeRollover.src = 'images/home_on.jpg';

	   peopleOn = new Image();
	   peopleOn.src = 'images/people_on.jpg';
	   peopleOff = new Image();
	   peopleOff.src = 'images/people.jpg';
   	   peopleRollover = new Image();
	   peopleRollover.src = 'images/people_on.jpg';

	   aboutOn = new Image();
	   aboutOn.src = 'images/about_on.jpg';
	   aboutOff = new Image();
	   aboutOff.src = 'images/about.jpg';
   	   aboutRollover = new Image();
	   aboutRollover.src = 'images/about_on.jpg';

	   reportsOn = new Image();
	   reportsOn.src = 'images/reports_on.jpg';
	   reportsOff = new Image();
	   reportsOff.src = 'images/reports.jpg';
   	   reportsRollover = new Image();
	   reportsRollover.src = 'images/reports_on.jpg';

	   linksOn = new Image();
	   linksOn.src = 'images/links_on.jpg';
	   linksOff = new Image();
	   linksOff.src = 'images/links.jpg';
   	   linksRollover = new Image();
	   linksRollover.src = 'images/links_on.jpg';

	   contactOn = new Image();
	   contactOn.src = 'images/contact_on.jpg';
	   contactOff = new Image();
	   contactOff.src = 'images/contact.jpg';
   	   contactRollover = new Image();
	   contactRollover.src = 'images/contact_on.jpg';

	   // set the default screen
	   on(img);

   	}

	function on(img) {
		if (document[img] && document[img] != currImage) {
			document[img].src = eval(img + 'On').src;
			if (currImage) {
				currImage.src = eval( currImage.name + 'Off').src;
			}
		}
		currImage = document[img];
		//loadSource('main', null, "./" + img + "/" + img + ".html");
	}

	function off(img) {
		if (document[img] && document[img] != currImage) {
			document[img].src = eval(img + 'Off').src;
		}
		if (document.all||document.getElementById) {
			document[img].style.borderColor="white";
		}
	}

	function highlight(img) {
		if (document[img] && document[img] != currImage) {
			document[img].src = eval(img + 'Rollover').src;
			document[img].style.cursor = "hand";
		}

	}

	function bringBio(name, div) {
		var bioUrl = "bios/" + name + ".html";
		//bio_div.innerHTML = "<iframe frameborder='0' height='100%' width='100%' src='" + bioUrl + "'></iframe>";
		loadExternal(bioUrl, div);
	}
/*
	function loadSource(id,nestref,url) {
		if (ns4) {
			var lyr = (nestref)? eval('document.'+nestref+'.document.'+id) : document.layers[id];
			lyr.load(url,lyr.clip.width);
		}
		else if (ie4) {
			parent.bufferFrame.document.location = url;
		}
	}
	function loadSourceFinish(id) {
		if (ie4) document.all[id].innerHTML = parent.bufferFrame.document.body.innerHTML;
	}
*/

function loadExternal(url, div) {

  if ( window.frames['buffer'] ) {
    window.frames['buffer'].location = url;
    var lyr = document.getElementById? document.getElementById(div): document.all? document.all[div]: null;
    if ( lyr && typeof lyr.innerHTML != "undefined" ) {
      lyr.innerHTML = "<a href='" + url + "'>Click Here</a>";
    }
    return false;
  } 
  return true; // other browsers follow link
}

// called when documents loaded into iframe (from their body's onload attribute)
function displayExternal() {

  var lyr = document.getElementById? document.getElementById('bio_div'): document.all? document.all['bio_div']: null;
    if ( window.frames['buffer'] && lyr && typeof lyr.innerHTML != "undefined" ) {
      lyr.innerHTML = window.frames['buffer'].document.body.innerHTML;
    }
}