// JavaScript Document

function Right(str, num){
  return str.substring(str.length-num);  // pull out right num
}

function subnav(n){
  var parent = document.getElementById('primarynav');
  var grp = parent.getElementsByTagName("a");
  var i=0
  while (grp[i]){
    if (grp[i].id=='primarynav'+n){grp[i].className='active';}
	else{grp[i].className='';}
    i++;
  }
  parent = document.getElementById('submenu');
  grp = parent.getElementsByTagName("div");
  i=0
  while (grp[i]){
    if (grp[i].id=='subnav'+n){grp[i].className='visible';}
	else{grp[i].className='hidden';}
    i++;
  }
}

function activeNav(){
  var parent = document.getElementById('primarynav');
  var grp = parent.getElementsByTagName("a");
  var i=0;
  var found=false;
  while (!found && i<grp.length){
    if (grp[i].className=='active'){
   found = true;
   var el = grp[i].id;
   var id = Right(el, (String(el).length-10));
   document.getElementById('subnav'+id).className = 'visible';
 }
    i++;
  }
}



window.onload=function(){
	activeNav();
}



//////////// show hide for some hidden divs

function HideContent(d) {
document.getElementById(d).style.display = "none";
}
function ShowContent(d) {
document.getElementById(d).style.display = "block";
}
function ReverseDisplay(d) {
if(document.getElementById(d).style.display == "none") { document.getElementById(d).style.display = "block"; }
else { document.getElementById(d).style.display = "none"; }
}



/////////////// MM preload images

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_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_findObj(n, d) { //v4.01
  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 && d.getElementById) x=d.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];}
}

////////////////// MM openwindow

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}