int PostMessage (string message )

Return Value: 0

Arguments:

This function should only be used in scripts, to communicate with the user. This can be handy to let the user know what's going on with your script. Warnings and errors should not be posted using this function, use PostWarning and PostError respectively. 

This can also be a handy debugging tool. Since you don't have the ability to step through your code line-by-line, you can post the values of variables at different stages in the script to review for bugs after the script has executed. 

Note: All messages, warnings and errors are posted to messiah's message window (to the right of the command prompt). A message history is maintained in File->Messages.