We have a formular with a checkbox... The result of the checkbox is a list of strings. In the following dtml-method (action) the method reads any string of the list and has to initiate read instructions to a mysql database table with this values but converted to integer... zope error...value error invalid literal for int(): 17 ...17 was the string which has to be converted ??? where is a good dtml documentation ...we have 2 books for zope, but the dtml parts are not good... MfG Margrit Lottmann +-----------------------------------------------------------------------+ | phone : +49 391 67 18572 | | +49 391 67 12819 | | Margrit Lottmann fax : +49 391 67 11134 | | | | Otto-von-Guericke-Universitaet Magdeburg | | Universitaetsrechenzentrum, URZ-N | | Universitaetsplatz 2 | | D-39106 Magdeburg, Germany | | | | Margrit.Lottmann@URZ.Uni-Magdeburg.DE | +-----------------------------------------------------------------------+