var voteVal = 0;

function setVoteVal(vval)
{
  voteVal = vval;
  var newWidth = new String();
  switch (vval)
  {
    case 1:
      newWidth = '20%'
      break
    case 2:
      newWidth = '40%'
      break
    case 3:
      newWidth = '60%'
      break
    case 4:
      newWidth = '80%'
      break
    case 5:
      newWidth = '100%'
      break
  }

  document.getElementById('currentVoteVal').style.width = newWidth;
}