function capitalize(form) {
  value = form.value;
  newValue = '';
  value = value.split(' ');
  for(var i = 0; i < value.length; i++) {
    newValue += value[i].substring(0,1).toUpperCase() +
    value[i].substring(1,value[i].length);
    if( i<(value.length-1) ) newValue += ' ';
  }
  form.value = newValue;
}