var lastId
var lastForm

/* direct() and clear() are used for the drop down menu */

function direct(o){
if (lastId!=null){clear(o);}
if (document.getElementById(o).options[document.getElementById(o).selectedIndex].value!=0){
document.getElementById(document.getElementById(o).options[document.getElementById(o).selectedIndex].value).style.display="block";
lastId=document.getElementById(o).options[document.getElementById(o).selectedIndex].value;
lastForm=o}
}

function clear(o){
if (lastForm!=o){document.getElementById(lastForm).selectedIndex=0}
document.getElementById(lastId).style.display="none";}

/* vtour() changes the image src for the virtual tour links */

function vtour(o){
document.getElementById('vtourimg').src='vtour/' + o
}

/* vtourtoggle() toggles whether the vtour div is shown or not (via the virtual tour link) */

function vtourtoggle(){
if (document.getElementById('vtour').style.display=='block'){document.getElementById('vtour').style.display='none'} else{document.getElementById('vtour').style.display='block'}}

function yearbooktoggle(){
if (document.getElementById('yearbooktext').style.display=='block'){document.getElementById('yearbooktext').style.display='none'} else{document.getElementById('yearbooktext').style.display='block'}
}