Determines the tab order of the weblet on the form. The tabIndex property value determines the tab order as follows:
1. Objects with a positive tabIndex are selected in increasing tabIndex order (and in source order to resolve duplicates).
2. Objects with a tabIndex of zero or blank (the default) are selected in source order.
3. Objects with a negative tabIndex are omitted from the tabbing order.
Default value
Blank. The weblet is selected in source order.
Valid values
Blank or a valid numeric value.
