<!DOCTYPE html> <html> <head> <script src="http://code.jquery.com/jquery.min.js" type="text/javascript"></script> <script type="text/javascript"> $(function(){ $("tr:nth-child(10n)").find("td:nth-child(3n)").each(function(){ alert( this.innerHTML ); }); }); </script> </head> <body> <table> <tr> <td>1</td> <td>2</td> <td>3</td> <td>4</td> <td>5</td> </tr> <tr> <td>6</td> <td>7</td> <td>8</td> <td>9</td> <td>10</td> </tr> <tr> <td>11</td> <td>12</td> <td>13</td> <td>14</td> <td>15</td> </tr> <tr> <td>16</td> <td>17</td> <td>18</td> <td>19</td> <td>20</td> </tr> <tr> <td>21</td> <td>22</td> <td>23</td> <td>24</td> <td>25</td> </tr> <tr> <td>26</td> <td>27</td> <td>28</td> <td>29</td> <td>30</td> </tr> <tr> <td>31</td> <td>32</td> <td>33</td> <td>34</td> <td>35</td> </tr> <tr> <td>36</td> <td>37</td> <td>38</td> <td>39</td> <td>40</td> </tr> <tr> <td>41</td> <td>42</td> <td>43</td> <td>44</td> <td>45</td> </tr> <tr> <td>46</td> <td>47</td> <td>48</td> <td>49</td> <td>50</td> </tr> <tr> <td>51</td> <td>52</td> <td>53</td> <td>54</td> <td>55</td> </tr> </body> </html>
$(function(){ $("tr:nth-child(10n) td:nth-child(3n)").each(function(){ alert( this.innerHTML ); }); });
спать надо больше
