* include/graphs/functions_pchart.php
include/graphs/pChart/pDraw.class.php
include/graphs/fgraph.php
include/graphs/functions_utils.php: Changed the send data method
from sessions to files with serialize functions. Creation of a
utils functions file. Improvement of the pChart library adding
attributes to avoid ticks and grids when the data under the
xaxis is empty.
git-svn-id: https://svn.code.sf.net/p/pandora/code/trunk@4160 c3f86ba8-e40f-0410-aaad-9ba5e7f4b01f
zarzuelo