Methods
		File operations OpenFile   Opens an influence diagram file SaveFile   Saves a file copy of the model Associate   Associates a file with the object – the file is deleted when the object is destroyed IsValid   Ensures that the model is usable SaveGraphic   Saves a pictorial representation of the model GetImageBinary   Returns an image (GIF only currently) in binary format for display in a browser Miscellaneous methods ConvertToTree   Returns a TreeObj after converting the model GetLastTimes   Get time spent on the last operation SetPreferencesFromXML   Set preferences from XML input
	Properties
		fileName   The full path of the tree, as passed in to OpenFile message   Retrieves a status message (for debugging) lastError   The error code of the last analysis graphicFileWidth   Gets the width of the last file saved in SaveGraphic graphicFileHeight   Gets the height of the last file saved in SaveGraphic imageBinarySize   Gets the size of the buffered image in bytes calcTime   Time required by the previous analysis operation in milliseconds