var tbs;

function tabmenu(){
    sch = document.getElementById('profdnav');
    if (sch){
        tbs = sch.getElementsByTagName('li');
        for(i=0;i<tbs.length;i++){
            tbs[i].onclick = function(){toggle(this)};
        };
    };
  // for photo archives tab height
    c1 = document.getElementById('pcont1d').offsetHeight;
    document.getElementById('pcont2d').style.height = c1 + "px";
};

function toggle(tn){
    var x;
    for(var i=0;i<tbs.length;i++){
        x = document.getElementById(tbs[i].id + 'd');
        x.style.visibility = 'hidden';
        if(tbs[i]==tn){
            tbs[i].className='act';}
        else{
            tbs[i].className='tab';}
        };
    x = document.getElementById(tn.id + 'd');
    x.style.visibility = 'visible';
};

function varchw(){
    c2 = document.getElementById('varch');
    c3 = c2.getElementsByTagName('li');
    c2.style.width = c3.length * 126 + 1 + "px";
};