Fahrschule

for (i=0;i<3;i++)
{
if (document.getElementsByClassName("col-left col-solution text-center hidden")[i].getElementsByClassName("answerCheckbox on")[0])
{
document.getElementById("cbox-"+(i+1)).click()
}
}
for (i=0;i<3;i++) {document.getElementsByClassName("col-left col-solution text-center hidden")[0].className="col-left col-solution text-center"}