function nav ()
{
}

function DK_startTimeout()
{
	fwStart = new Date();
	fwDHFlag = true;
	fwHideMenuTimer = setTimeout("DKDoHide()", 10);
}

function DK_resetTimeout()
{
	fwDHFlag = false;
}

function DKDoHide()
{
	if (!fwDHFlag) return;
	var elapsed = new Date() - fwStart;
	if (elapsed < 100) {
		fwHideMenuTimer = setTimeout("DKDoHide()", 10-elapsed);
		return;
	}
	fwDHFlag = false;
	Show_Layer();
}

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 Show_Layer() { //v3.0
  var i,obj,args=Show_Layer.arguments;
  var div_len = 26;
  var div_name = 'tmenu'
  if(document.getElementById){
   for (i=1; i<= div_len; i+=1){
     div_num = div_name + i;
     obj=document.getElementById(div_num);
     if(obj)obj.style.visibility='hidden';}
   if (args[0]){
   obj=document.getElementById(args[0]);
   if(obj)obj.style.visibility='visible';}}
  else  {
   for (i=1; i<= div_len; i+=1){
     div_num = div_name + i;
     if ((obj=MM_findObj(div_num))!=null){
       if (obj.style) { obj=obj.style;}
       obj.visibility='hidden';}}
   if (args[0]){
   if ((obj=MM_findObj(args[0]))!=null){
     if (obj.style)  { obj=obj.style;}
     obj.visibility='visible';  }}}
}


function startTimeout()
//modified by Scott Chapin
//portions copyright DigiKnow, Inc. 2001-2003
// parameter: length of timeout as an integer;
{
var args=startTimeout.arguments
DKTimeOut = args[0]
fwStart = new Date();
fwDHFlag = true;
fwHideMenuTimer = setTimeout("DoHide()", DKTimeOut);
}


function resetTimeout()
{
	fwDHFlag = false;
}

function DoHide()
//modified by Scott Chapin
//portions copyright DigiKnow, Inc. 2001-2003
{
if (!fwDHFlag) return;
var elapsed = new Date() - fwStart;
if (elapsed < DKTimeOut) {
fwHideMenuTimer = setTimeout("DoHide()", DKTimeOut+100-elapsed);
return;
}
fwDHFlag = false;
Show_Layer();
window.ActiveMenuItem = 0;
}

function Show_Layer() { //v3.0
//modified by Scott Chapin
//portions copyright DigiKnow, Inc. 2001
// parameters:	char string - <DIV> layer name of or 'clear' to show no menus
//		integer  - as number of <DIV> layers in menu; used for hiding all layers on call w/ no layer name
//		char string - non-integer part of <DIV> layer name; ex: nav_menu1, nav_menu2, etc -> 'nav_menu'


  var global_div_len = 27; 	//integer  - as number of <DIV> layers in menu; used for hiding all layers on call w/ no layer name
  var global_div_name = 'tmenu';	//char string - non-integer part of <DIV> layer name; ex: nav_menu1, nav_menu2, etc -> 'nav_menu'

  var i,obj,args=Show_Layer.arguments;
  if (global_div_len && global_div_name){
	  var div_len = global_div_len;
	  var div_name = global_div_name;}
  else {
	  var div_len = 27;
	  var div_name = 'tmenu';
  }
  if(document.getElementById){
   for (i=1; i<= div_len; i+=1){
     div_num = div_name + i;
     obj=document.getElementById(div_num);
     if(obj)obj.style.visibility='hidden';}
   if (args[0]){
   obj=document.getElementById(args[0]);
   if(obj)obj.style.visibility='visible';}}
  else  {
   for (i=1; i<= div_len; i+=1){
     div_num = div_name + i;
     if ((obj=MM_findObj(div_num))!=null){
       if (obj.style) { obj=obj.style;}
       obj.visibility='hidden';}}
   if (args[0]){
   if ((obj=MM_findObj(args[0]))!=null){
     if (obj.style)  { obj=obj.style;}
     obj.visibility='visible';  }}}
}

function ArticlePop() {
	var hw = "toolbar=no,location=no,directories=no,status=no,scrollbars=yes,resizable=no,copyhistory=no,width=700,height=600";
	newWind = window.open('?print=y', 'articlepop', hw );
}

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 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];}}
}