function home()
         {document.getElementById('ashrae').style.visibility = 'visible';
	    document.getElementById('ops').style.visibility = 'hidden';
	    document.getElementById('lnks').style.visibility = 'hidden';
   	    document.getElementById('member').style.visibility = 'hidden';
          document.getElementById('news').style.visibility = 'hidden';
          document.getElementById('misc').style.visibility = 'hidden';
	 }

function ops()
         {document.getElementById('ashrae').style.visibility = 'hidden';
          document.getElementById('ops').style.visibility = 'visible';
          document.getElementById('lnks').style.visibility = 'hidden';
          document.getElementById('member').style.visibility = 'hidden';
          document.getElementById('news').style.visibility = 'hidden';
          document.getElementById('misc').style.visibility = 'hidden';
	 }

function lnks()
         {document.getElementById('ashrae').style.visibility = 'hidden';
          document.getElementById('ops').style.visibility = 'hidden';
          document.getElementById('lnks').style.visibility = 'visible';
          document.getElementById('member').style.visibility = 'hidden';
          document.getElementById('news').style.visibility = 'hidden';
          document.getElementById('misc').style.visibility = 'hidden';
	 }

function member()
         {document.getElementById('ashrae').style.visibility = 'hidden';
          document.getElementById('ops').style.visibility = 'hidden';
          document.getElementById('lnks').style.visibility = 'hidden';
          document.getElementById('member').style.visibility = 'visible';
          document.getElementById('news').style.visibility = 'hidden';
          document.getElementById('misc').style.visibility = 'hidden';
         }

function news()
         {document.getElementById('ashrae').style.visibility = 'hidden';
          document.getElementById('ops').style.visibility = 'hidden';
          document.getElementById('lnks').style.visibility = 'hidden';
          document.getElementById('member').style.visibility = 'hidden';
          document.getElementById('news').style.visibility = 'visible';
          document.getElementById('misc').style.visibility = 'hidden';
         }

function misc()
         {document.getElementById('ashrae').style.visibility = 'hidden';
          document.getElementById('ops').style.visibility = 'hidden';
          document.getElementById('lnks').style.visibility = 'hidden';
          document.getElementById('member').style.visibility = 'hidden';
          document.getElementById('news').style.visibility = 'hidden';
          document.getElementById('misc').style.visibility = 'visible';
	 }