var generateCompareTRs = function( iCol, sType, iDirection ) {
	
	if( ! iDirection ) {
		iDirection = 1;
	}
	
	if( sType == "a" ) {
		return function ( oTR1, oTR2 ) {
			var sValue1 = oTR1.cells[iCol].firstChild.nodeValue;
			var sValue2 = oTR2.cells[iCol].firstChild.nodeValue;
			return sValue1.localeCompare( sValue2 ) * iDirection;		
		};
	} else {
		return function ( oTR1, oTR2 ) {
			var nValue1 = parseInt( oTR1.cells[iCol].firstChild.nodeValue.replace( /\D/, "" ));
			var nValue2 = parseInt( oTR2.cells[iCol].firstChild.nodeValue.replace( /\D/, "" ));

			var iResult;
			if( nValue1 < nValue2 ) {
				iResult = -1;
			} else if ( nValue1 > nValue2 ) {
				iResult = 1;
			} else {
				iResult = 0;
			}
			iResult = iResult * iDirection;
			return iResult;		
		};
	}
};


var sortTable = function( oColumn ) {
	
	var oRow = oColumn.parentNode;
	var iCellIdx = 0;
	var sCellIdx = oColumn.getAttribute( "fse:idx" );
	if( sCellIdx ) {
		iCellIdx = parseInt( sCellIdx );	
	} else {
		for( var i = 0; i < oRow.cells.length; i++ ) {
			if( oRow.cells[i] == oColumn ) {
				iCellIdx = i;
			}
		}
	}
	var iDirection = oColumn.getAttribute( "fse:dir" );
	if( ! iDirection ) {
		iDirection = -1;
	}
	
	var sType = oColumn.getAttribute( "fse:type" );
	if( !sType ) {
		sType = "a";
	}

	iDirection = iDirection * -1;
	oColumn.setAttribute( "fse:dir", iDirection );	
	var oTable = oRow.parentNode.parentNode;
	
	// var oTable = document.getElementById( sTableID );
	var oTBody = oTable.tBodies[0];
	var colDataRows = oTBody.rows;
	var aTRs = new Array();
	
	for( var i = 0; i < colDataRows.length; i++ ) {
		aTRs.push( colDataRows[i] ); 
	}
	
	aTRs.sort( generateCompareTRs( iCellIdx, sType, iDirection ) );
	
	
	var oFragment = document.createDocumentFragment();
	for( var i = 0; i < aTRs.length; i++ ) {
		oFragment.appendChild( aTRs[i] );
	}
	
	oTBody.appendChild( oFragment );
};