tabIndex
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. Note that this behavior is not defined in the HTML specifications and is only supported by Internet Explorer and Firefox.
Default value
Blank. The weblet is selected in source order.
Valid values
Blank or a valid numeric value.