THEAD
This tag is used to define the header of the table, a rule being that at least one table row must be placed within the opening and closing statements of the THEAD tag. For example:
<TABLE RULES="ROWS"> <THEAD> <TR> <TD>COLUMN ONE</TD> <TD>COLUMN TWO</TD> </TR> </THEAD> </TABLE>
THEAD Attributes:
ALIGN="LEFT, RIGHT, CENTER, JUSTIFY, or CHAR"
This attribute defines how the TEXT within the table header will align with the edges of the table cells.
CHAR=" ... "
This attribute defines the character upon which the cell contents will align, the default being the decimal point.
CHAROFF=" ... "
This attribute defines the number of characters, measured from the left, upon which the cell contents will align.
CLASS=" ... "
This attribute indicates the style 'class' applicable to the tag to which it has been assigned, the style 'class' being a function of a style sheet. For example, assume the style class 'relaxed' includes text with a font size of 8, and the style class 'active' includes text with a font size of 12. Using the CLASS="relaxed" attribute with a tag will cause the text within that tag to be displayed with a font size of 8. Using the CLASS="active" attribute with a tag will cause the text within that tag to be displayed with a font size of 12.
ID="n"
The ID attribute is used to assign a unique ID selector (identification) to the tag in which it is invoked. A style may be assigned to that ID, which will effect only that one instance of the attribute.
STYLE=" ... "
Used to specify which style sheet commands to apply to the instance of the STYLE attribute invoked within the tag.
TITLE=" ... "
The TITLE attribute is used to display a note or information in a popup window pertaining to the object to which it was assigned. The popup window is invoked by holding the mouse pointer over the object.
VALIGN="TOP, BOTTOM, MIDDLE, or BASELINE"
This attribute defins the vertical alignment of the contents of the cell.
This tag also accepts the following Event Handlers:

onClick
onDblClick
onDragStart
onHelp
onMouseDown
onMouseUp
onMouseOver
onMouseMove
onMouseOut
onKeyPress
onKeyDown
onKeyUp
onSelectStart