function setSelection($first_row,$first_column,$last_row,$last_column)
    {
        $this->_selection = array($first_row,$first_column,$last_row,$last_column);
    }
function setSelection($first_row,$first_column,$last_row,$last_column)
    {
        $this->_selection = array($first_row,$first_column,$last_row,$last_column);
    }
function setSelection ( $ first_row , $ first_column , $ last_row , $ last_column ) { $ this -> _selection = array ( $ first_row , $ first_column , $ last_row , $ last_column ) ; }
Set which cell or cells are selected in a worksheet

@access public
@param integer $first_row    first row in the selected quadrant
@param integer $first_column first column in the selected quadrant
@param integer $last_row     last row in the selected quadrant
@param integer $last_column  last column in the selected quadrant
Set which cell or cells are selected in a worksheet