<!-- Original: Patrick Lewis, mod: W.Jansen, heavily pruned: A.Akhavan -->

function tt_on(txt) {
overdiv="0";
document.getElementById("qtt").innerHTML=txt;
document.getElementById("qtt").style.display="block";
document.getElementById("qtt").style.left=0;
document.getElementById("qtt").style.right=0;
document.getElementById("qtt").style.bottom="0";
document.getElementById("qttframe").style.display="block";
}

function tt_off(){
if (overdiv=="0") {
 document.getElementById("qtt").style.display="none";
 document.getElementById("qttframe").style.display="none";
 }
}