public/javascripts/yui/datatable/datatable.js
function(oColumn) {
    if(oColumn.getKeyIndex() !== null) {
        this._elColgroup.childNodes[oColumn.getKeyIndex()].style.width = '';
    }
}
function(oColumn) {
    if(oColumn.getKeyIndex() !== null) {
        this._elColgroup.childNodes[oColumn.getKeyIndex()].style.width = '';
    }
}
function ( oColumn ) { if ( oColumn . getKeyIndex ( ) !== null ) { this . _elColgroup . childNodes [ oColumn . getKeyIndex ( ) ] . style . width = '' ; } }
Clears minWidth.

@method _clearMinWidth
@param oColumn {YAHOO.widget.Column} Which Column.
@private
Clears minWidth .