var total = 0;

function next(current,next){


document.getElementById(current).style.display='none'; 
document.getElementById(next).style.display='block';


}



function last(current, last){

document.getElementById(current).style.display='none'; 
document.getElementById(last).style.display='block';


}


function score(points){

total = total + points;
document.getElementById('fill').style.height= (total * 2.3) + 'px';


}

function tabulate(total){

document.getElementById('totalscore').value = total;

}