//  from PPK - mouseovers & getPosX

window.onload = init;
function init()
{
if (document.getElementById)
{
var lessonbuttons = new Array("tahi","rua","toru","wha","rima","ono");

    for (var i=0; i<lessonbuttons.length; i++)
    {

    document.getElementById(lessonbuttons[i]).onclick = linkhop;
    document.getElementById(lessonbuttons[i]).onmouseover = rollover;
    document.getElementById(lessonbuttons[i]).onmouseout = rolloff;
}
}

else
{return;}
}

function linkhop() {
    var subjectblock = this.id;
    subjectblock = document.getElementById(subjectblock);
var subjectlinks = subjectblock.getElementsByTagName('a');
window.location = subjectlinks[0].href;
}

function rollover() {
var subjectblock = this.id;
subjectblock = document.getElementById(subjectblock);
    var subjectlinks = subjectblock.getElementsByTagName('a');
window.status = subjectlinks[0].href;
}

function rolloff() {
var subjectblock = this.id;
subjectblock = document.getElementById(subjectblock);
window.status = '';
}