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 (

"images/nav_families_intro_roll.gif",
"images/nav_families_profile_roll.gif",
"images/nav_families_who_roll.gif",
"images/nav_life_history_roll.gif",
"images/nav_life_intro_roll.gif",
"images/nav_life_history_roll.gif",
"images/nav_project_bios_roll.gif",
"images/nav_project_credits_roll.gif",
"images/nav_project_experts_roll.gif",
"images/nav_project_intro_roll.gif",
"images/nav_project_rules_roll.gif",
"images/nav_project_search_roll.gif",
"images/nav_project_series_roll.gif",
"images/nav_project_support_roll.gif",
"images/nav_project_timeline_roll.gif",
"images/nav_resources_intro_roll.gif",
"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);

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