var galleryClicked=false;
var portfolioClicked=false;
function galleryClick(){
  var status='hidden';
  if(!galleryClicked){
    status='visible';
    galleryClicked=true;
  }
  else {
    status='hidden';
    galleryClicked=false;
  }
  if(portfolioClicked){
    document.getElementById('PortfolioGalleriesNav').style.visibility='hidden';
    portfolioClicked=false;
  }
  document.getElementById('GalleriesNav').style.visibility=status;
}
function portfolioClick(){
  //top=document.getElementById('GalleriesNav').offsetTop;
  //alert(top);
  //document.getElementById('PortfolioGalleriesNav').style.top=top;
  var status='hidden';
  if(!portfolioClicked){
    status='visible';
    portfolioClicked=true;
  }
  else {
    status='hidden';
    portfolioClicked=false;
  }
  if(galleryClicked){
    document.getElementById('GalleriesNav').style.visibility='hidden';
    galleryClicked=false;
  }
  document.getElementById('PortfolioGalleriesNav').style.visibility=status;
}