code: function getDefaultSorter(colName) {
  		return function(a, b, dir){
  
  			var 
  				firstRec = dir == 'asc' ? a : b,
  				secondRec = dir == 'asc' ? b : a,
  
  				fA = firstRec[colName].toLowerCase(),
  				fB = secondRec[colName].toLowerCase();
  
  			// Handle numbers
  			if (fA<fB) return -1
  			if (fA>fB) return +1
  			return 0
  		};
  	}
docs: Gets the default column sorter