function showAssumptions(){
if (document.getElementById('assumptions').style.display == 'none'){
document.getElementById('assumptions').style.display = '';
document.getElementById('hide').style.display = '';
document.getElementById('show').style.display = 'none';
} else {
document.getElementById('assumptions').style.display = 'none';
document.getElementById('hide').style.display = 'none';
document.getElementById('show').style.display = '';
}
}