<OPTGROUP>NN n/a   IE n/a   HTML 4
<OPTGROUP>...</OPTGROUP>End Tag: Required
 

The OPTGROUP element offers the possibility that future browsers will provide a hierarchical SELECT element. An OPTGROUP element represents a container of OPTION elements. The LABEL attribute is the text that would appear in the main SELECT element listing, with nested OPTION elements cascading off the side when the OPTGROUP element is highlighted.

 
Example 
<SELECT NAME="carCos">
    <OPTGROUP LABEL="American">
        <OPTION VALUE="General Motors">General Motors
        <OPTION VALUE="Ford">Ford Motor Company
        <OPTION VALUE="Chrysler">Chrysler Corporation
    </OPTGROUP>
    <OPTGROUP LABEL="Japanese">
        <OPTION VALUE="Toyota">Toyota
        <OPTION VALUE="Honda">Honda
        <OPTION VALUE="Nissan">Nissan
    </OPTGROUP>
</SELECT>
DISABLEDNN n/a   IE n/a   HTML 4
DISABLEDOptional
 

The presence of this attribute disables the OPTGROUP element and its nested OPTION elements.

 
Example 
<OPTGROUP LABEL="Engineering" DISABLED>
 
Value
The presence of this attribute sets its value to true.
 
Default false
LABELNN n/a   IE n/a   HTML 4
LABEL="labelText"Required
 

The text of the SELECT element entry for the OPTGROUP is defined by the LABEL attribute. This is plain text, not HTML.

 
Example 
<OPTGROUP LABEL="Engineering" DISABLED>
 
Value
Any string of characters. The string must be inside a matching pair of (single or double) quotation marks.
 
Default None.
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