recursion - jquery recursive function -

im trying make minesweeper game in jquery.

when user clicks on table cell, check done see if there number or x in square. if there not, function called , table cell passed it.

the function returns adjacent squares clicked square, , uncovered.

the question is, selection of adjacent squares returned, how can check if of them empty, , if are, squares adjacent them, , uncover them , check if of them empty....until empty squares adjacent adjacent squares clicked 1 uncovered?

if (isemptysquare(this)) {     emp = adjacentsquares(this);     $(emp).each(function() {         $(this).removeclass('covered').addclass('uncovered');     }); }  function adjacentsquares(square) {     //find row , column of current td(square)     var thisrow = $(square).parent().parent().children().index($(square).parent());     var thiscol = $(square).parent().children().index($(square));     var prevrow = (thisrow - 1);     var nextrow = (thisrow + 1);      if (thiscol == 0) {         slicefrom = 0;     } else {         slicefrom = (thiscol - 1);     }      //select adjacent td's current td, merge adjacent cells variable     var above = $('tr:eq(' + prevrow + ')').children('td').slice((slicefrom), (thiscol + 2));     var below = $('tr:eq(' + nextrow + ')').children('td').slice((slicefrom), (thiscol + 2));     var abovebelow = $.merge(above, below);     var prevnext = $.merge(($(square).next('td')), ($(square).prev('td')));     var adjacents = $.merge(abovebelow, prevnext);      return adjacents; }  function isemptysquare(square) {     if ($(square).filter(function() {         return !/[0-9]/.test($(square).text());     }).not(":contains('x')").length > 0) {         return true;     }     else {         return false;     } } 

this more familiar problem might think. can achieve need implementing flood fill algorithm.