Warning:
  Text: mysql_query(): supplied argument is not a valid MySQL-Link resource
  File: /home2/losebutt/weightloss678/classes/database.class.php
  Line: 150

Call Stack:
errorHandler(2, "mysql_query(): supplied argument is not a valid MySQL-Link resource", "/home2/losebutt/weightloss678/classes/database.class.php", 150, array())
mysql_query("update weightloss678_visit set value = value + 1 where visitdate = '2009-01-06'", false)
    /home2/losebutt/weightloss678/classes/database.class.php [150]
Dataset->exec("update weightloss678_visit set value = value + 1 where visitdate = '2009-01-06'")
    /home2/losebutt/weightloss678/classes/tools.lib.php [157]
sqlexec("update weightloss678_visit set value = value + 1 where visitdate = '2009-01-06'")
    /home2/losebutt/weightloss678/index.php [23]