A collection of rows within a <THEAD>
block of a table.
|DOM level - 1|
|JScript - 3.0|
|Internet Explorer - 4.0|
|Netscape - 6.0|
|Property/method value type:||Collection object|
This is not the same as the rows collection returned from a TABLE object. That is because the rows collection belonging to a THEAD object can only list those TR objects that are contained within the <THEAD> tags.