YAHOO.widget.DataTable.prototype.getTdEl = function(cell) {
	var Dom = YAHOO.util.Dom,
		lang = YAHOO.lang,
		elCell,
		el = Dom.get(cell);

	// Validate HTML element
	if (el && (el.ownerDocument == document)) {
		// Validate TD element
		if(el.nodeName.toLowerCase() != "td") {
			// Traverse up the DOM to find the corresponding TR element
			elCell = Dom.getAncestorByTagName(el, "td");
		} else {
			elCell = el;
		}
		// Make sure the TD is in this TBODY
		if(elCell && (elCell.parentNode.parentNode == this._elTbody)) {
			// Now we can return the TD element
			return elCell;
		}
	} else if(cell) {
		var oRecord, nColKeyIndex;
		if (lang.isString(cell.columnKey) && lang.isString(cell.recordId)) {
			oRecord = this.getRecord(cell.recordId);
			var oColumn = this.getColumn(cell.columnKey);
			if(oColumn) {
				nColKeyIndex = oColumn.getKeyIndex();
			}
		}
		if(cell.record && cell.column && cell.column.getKeyIndex) {
			oRecord = cell.record;
			nColKeyIndex = cell.column.getKeyIndex();
		}
		var elRow = this.getTrEl(oRecord);
		if((nColKeyIndex !== null) && elRow && elRow.cells && elRow.cells.length > 0) {
			return elRow.cells[nColKeyIndex] || null;
		}
	}
	return null;
};