bName = navigator.appName;

bVer = parseInt(navigator.appVersion); 



          if      (bName == "Netscape" && bVer <= 3) ver = "dhtmlbad";
        else if (bName == "Microsoft Internet Explorer" && bVer <= 3) ver = "dhtmlbad";
		else if (bName == "Netscape" && bVer >= 3) ver = "dhtmlgood";
		else if (bName == "Microsoft Internet Explorer" && bVer >= 3) ver = "dhtmlgood";



     

       if (ver == "dhtmlbad") {

        document.write('');

        }

		

if (ver == "dhtmlgood") 

{ 

NS4 = document.layers;

 if (NS4) {

    origWidth = innerWidth;

    origHeight = innerHeight;

 }



function reDo() {

   if (innerWidth != origWidth || innerHeight != origHeight) 

      location.reload();

}



if (NS4) onresize = reDo;



if (document.images) {

		goodVersion = true;

	} else {

		goodVersion = false;

	}



	DHTMLversion = "Disabled"

	if (navigator.appVersion.substring(0, 1) >= 4) {

		if (navigator.userAgent.indexOf("MSIE", 0) > -1) {

			if (false) { //(navigator.userAgent.indexOf("Mac", 0) > -1) {

				DHTMLversion = "Disabled"

			} else {

				DHTMLversion = "MSIE"

			}

		} else if (navigator.userAgent.indexOf("Mozilla", 0) > -1) {

			DHTMLversion = "NS"

		}

	}	



function imageSwap(which, state) {

        if (goodVersion) {

			//var thisImage = document.images[which];

			var thisImage = getImage(which);

			var thisImageSrc = thisImage.src;

			var imageName = thisImageSrc.substring(0,thisImageSrc.indexOf("_o"));

            if (state == 0) {

                thisImage.src = imageName + "_off.gif"

            } else {

                thisImage.src = imageName + "_on.gif"

          	}

        }

    }

		if (goodVersion) {

		var PageImages = new Array();

		var PageAltImages = new Array();

	}

	

	function LoadActiveImages() {

		if (goodVersion) {

			var num = document.images.length;

			for (var i = 0; i < num; i++) {

				var thisImage = document.images[i];

				var thisImageSrc = thisImage.src;

				var imageName = thisImageSrc.substring(0,thisImageSrc.indexOf("_o"));

				//document.write(imageName + "<BR>");

				if (thisImageSrc.indexOf("_off") != -1) {

					PageImages[i] = new Image(thisImage.width, thisImage.height);

        	     	PageImages[i].src = imageName + "_on.gif";

				} else if (thisImage.src.indexOf("_on") != -1) {

					PageAltImages[i] = new Image(thisImage.width, thisImage.height);

        	     	PageAltImages[i].src = imageName + "_off.gif";

					//var ImagePtr = getImage(thisImage);

					//document.images[getImage(thisImage)].src = imageName + "_off.gif";

					//document.images[getImage(thisImage)].src = imageName + "_off.gif";

				}

         	}

		}

	}

	

	function getImage(inputName) {

		//document.write("About to get Image: " + image_name +"<BR>");

		var myImage = document [inputName];

		browserName = navigator.appName;

       	browserVer = parseInt(navigator.appVersion);

        if (browserName == "Netscape" && browserVer == 3) {

			if (myImage.length) {

				return myImage[myImage.length-1];

			} else return myImage;

		} else {

			return myImage;

		}

	}



	function popWindow(URL,XDim,YDim) {

		var windowname = "popupwindow" + XDim + YDim

		var windowparam = "width=" + XDim + ",height=" + YDim + ",scrollbars=no"

		popwin = window.open(URL, windowname, windowparam)

		popwin.opener = self

		popwin.focus()

	}

	



	function closeWin(){

				window.close()

				}

				

function MM_findObj(n, d) { //v3.0

  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); return x;

}



function MM_showHideLayers() { //v3.0

  var i,p,v,obj,args=MM_showHideLayers.arguments;

  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];

    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v='hide')?'hidden':v; }

    obj.visibility=v; }

}



function showHideSwap(theLayerName,whatToDo,theImageName,theImageState){

	obj=MM_findObj('showlayer');

	obj.style.visibility = 'visible';

	// document.all.item(theImageName).src = "images/" + theImageName + "_" + theImageState + ".gif";

}



function imageSwapDiv(which, state, whatDiv) {

        if (goodVersion) {

			//var thisImage = document.images[which];

			

			if ((DHTMLversion == "NS") && (whatDiv != null)) {

				var thisImage = document.layers[whatDiv].document[which]

			} else {

				var thisImage = getImage(which)

			}

		

			var thisImageSrc = thisImage.src;

			var imageName = thisImageSrc.substring(0,thisImageSrc.indexOf("_o"));

            if (state == 0) {

                var newImagesrc = imageName + "_off.gif"

            } else {

                var newImagesrc = imageName + "_on.gif"

          	}

			

			thisImage.src = newImagesrc

        }

    }

    
}


// preload dhtml nav images
if (document.images){
arImageSrc = new Array (

"http://www.pbs.org/wnet/frontierhouse/images/nav_families_intro_roll.gif",
"http://www.pbs.org/wnet/frontierhouse/images/nav_families_profile_roll.gif",
"http://www.pbs.org/wnet/frontierhouse/images/nav_families_who_roll.gif",
"http://www.pbs.org/wnet/frontierhouse/images/nav_life_history_roll.gif",
"http://www.pbs.org/wnet/frontierhouse/images/nav_life_intro_roll.gif",
"http://www.pbs.org/wnet/frontierhouse/images/nav_life_history_roll.gif",
"http://www.pbs.org/wnet/frontierhouse/images/nav_project_bios_roll.gif",
"http://www.pbs.org/wnet/frontierhouse/images/nav_project_credits_roll.gif",
"http://www.pbs.org/wnet/frontierhouse/images/nav_project_experts_roll.gif",
"http://www.pbs.org/wnet/frontierhouse/images/nav_project_intro_roll.gif",
"http://www.pbs.org/wnet/frontierhouse/images/nav_project_rules_roll.gif",
"http://www.pbs.org/wnet/frontierhouse/images/nav_project_search_roll.gif",
"http://www.pbs.org/wnet/frontierhouse/images/nav_project_series_roll.gif",
"http://www.pbs.org/wnet/frontierhouse/images/nav_project_support_roll.gif",
"http://www.pbs.org/wnet/frontierhouse/images/nav_project_timeline_roll.gif",
"http://www.pbs.org/wnet/frontierhouse/images/nav_resources_intro_roll.gif",
"http://www.pbs.org/wnet/frontierhouse/images/nav_resources_bib_roll.gif"

)
arImageList = new Array ();

for (counter in arImageSrc) {
  arImageList[counter] = new Image();
  arImageList[counter].src = arImageSrc[counter];
     }
 }



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) { //v4.0

  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 && document.getElementById) x=document.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];}

}

  function openWindow(url, name) {

  var l = openWindow.arguments.length;

  var w = "";

  var h = "";

  var features = "";



  for (i=2; i<l; i++) {

    var param = openWindow.arguments[i];

    if ( (parseInt(param) == 0) ||

      (isNaN(parseInt(param))) ) {

      features += param + ',';

    } else {

      (w == "") ? w = "width=" + param + "," :

       h = "height=" + param;

    }

  }



  features += w + h;

  var code = "popupWin = window.open(url, name";

  if (l > 2) code += ", '" + features;

  code += "')";

  eval(code);

  }

function close_window(){parent.window.close();}

						
bName = navigator.appName;
bVer = parseInt(navigator.appVersion); 
if      (navigator.platform == "Win32") ver = "pc";
else if (navigator.platform == "MacPPC") ver = "mac";
if (ver == "pc") {document.write('<script language="JavaScript" src="http://www.pbs.org/wnet/frontierhouse/print_script_pc.js" type="text/javascript"></script>')}
if (ver == "mac") {document.write('<script language="JavaScript" src="http://www.pbs.org/wnet/frontierhouse/print_script_mac.js" type="text/javascript"></script>')}


if (document.images) { // Preloaded images
face1 = new Image();
face1.src = "../images/face_1.jpg";
face2 = new Image();
face2.src = "../images/face_2.jpg";

face3 = new Image();
face3.src = "../images/face_3.jpg";

face4 = new Image();
face4.src = "../images/face_4.jpg";

face5 = new Image();
face5.src = "../images/face_5.jpg";

face6 = new Image();
face6.src = "../images/face_6.jpg";

face7 = new Image();
face7.src = "../images/face_7.jpg";

face8 = new Image();
face8.src = "../images/face_8.jpg";

face9 = new Image();
face9.src = "../images/face_9.jpg";

face10 = new Image();
face10.src = "../images/face_10.jpg";

face11 = new Image();
face11.src = "../images/face_11.jpg";

face12 = new Image();
face12.src = "../images/face_12.jpg";

face13 = new Image();
face13.src = "../images/face_13.jpg";

}
function timeimgs(numb) { // Reusable timer
thetimer = setTimeout("imgturn('" +numb+ "')", 1800);
}
function imgturn(numb) { // Reusable image turner
if (document.images) {
if (numb == "14") { // This will loop the image
document["face"].src = eval("face1.src");
timeimgs('2');
}
else { document["face"].src = eval("face" + numb + ".src");
timeimgs(numb = ++numb);
}
}
}