currversion=0.0
if [ -e "$1/VERSION" ]
then
  currversion=`cat $1/VERSION`
fi
newversion=`cat VERSION`
comparison=`echo "$newversion > $currversion" | bc`
if [ $comparison -gt 0 ]
then
  rm -rf $1/
  tar -xvf geogebra_html5.tar.gz
  mv web $1
  cp VERSION $1/VERSION
  chown -R www:www $1
  find $1 -type d -exec chmod u=rwx,go-rwx {} \;
fi