diff --git a/Frontend/tools/xpath.html b/Frontend/tools/xpath.html
index d291985..56ce96a 100644
--- a/Frontend/tools/xpath.html
+++ b/Frontend/tools/xpath.html
@@ -388,7 +388,7 @@
                                         <td>false</td>
                                     </tr>
                                 </table><br>
-                                <code>W3C Documentation reference: <a href="https://www.w3.org/TR/1999/REC-xpath-19991116/#function-boolean" class="hyperlink" target="_blank">Boolean-Functions</code></a>
+                                <code>W3C Documentation reference: <a href="https://www.w3.org/TR/1999/REC-xpath-19991116/#section-Boolean-Functions" class="hyperlink" target="_blank">Boolean-Functions</code></a>
                             </div>
                         </div>
 
@@ -411,7 +411,7 @@
                             <div class="section">
                                 The true function returns true. <br>
                                 <br>
-                                <code>W3C Documentation reference: <a href="https://www.w3.org/TR/1999/REC-xpath-19991116/#function-true" class="hyperlink" target="_blank">Boolean-Functions</code></a>
+                                <code>W3C Documentation reference: <a href="https://www.w3.org/TR/1999/REC-xpath-19991116/#section-Boolean-Functions" class="hyperlink" target="_blank">Boolean-Functions</code></a>
                             </div>
                         </div>
 
@@ -422,7 +422,7 @@
                             <div class="section">
                                 The true function returns false. <br>
                                 <br>
-                                <code>W3C Documentation reference: <a href="https://www.w3.org/TR/1999/REC-xpath-19991116/#function-false" class="hyperlink" target="_blank">Boolean-Functions</code></a>
+                                <code>W3C Documentation reference: <a href="https://www.w3.org/TR/1999/REC-xpath-19991116/#section-Boolean-Functions" class="hyperlink" target="_blank">Boolean-Functions</code></a>
                             </div>
                         </div>
 
@@ -443,7 +443,7 @@
                                     </tr>
                                 </table><b>Examples: </b> Look W3C documentation<br>
                                <br>
-                                <code>W3C Documentation reference: <a href="https://www.w3.org/TR/1999/REC-xpath-19991116/#section-String-Functions" class="hyperlink" target="_blank">Boolean-Functions</code></a>
+                                <code>W3C Documentation reference: <a href="https://www.w3.org/TR/1999/REC-xpath-19991116/#section-Boolean-Functions" class="hyperlink" target="_blank">Boolean-Functions</code></a>
                             </div>
                         </div>
 
@@ -1407,7 +1407,7 @@
                                         <td>false</td>
                                     </tr>
                                 </table><br>
-                                <code>W3C Documentation reference: <a href="https://www.w3.org/TR/1999/REC-xpath-19991116/#function-numeric" class="hyperlink" target="_blank">Numeric-Functions</code></a>
+                                <code>W3C Documentation reference: <a href="https://www.w3.org/TR/1999/REC-xpath-19991116/#section-Number-Functions" class="hyperlink" target="_blank">Numeric-Functions</code></a>
                             </div>
                         </div>
 
@@ -1441,7 +1441,7 @@
                                         <td>12444</td>
                                     </tr>
                                 </table><br>
-                                <code>W3C Documentation reference: <a href="https://www.w3.org/TR/1999/REC-xpath-19991116/#function-not" class="hyperlink" target="_blank">Numeric-Functions</code></a>
+                                <code>W3C Documentation reference: <a href="https://www.w3.org/TR/1999/REC-xpath-19991116/#section-Number-Functions" class="hyperlink" target="_blank">Numeric-Functions</code></a>
                             </div>
                         </div>
 
@@ -1474,7 +1474,7 @@
                                         <td>2</td>
                                     </tr>
                                 </table>
-                                <code>W3C Documentation reference: <a href="https://www.w3.org/TR/1999/REC-xpath-19991116/#function-true" class="hyperlink" target="_blank">Numeric-Functions</code></a>
+                                <code>W3C Documentation reference: <a href="https://www.w3.org/TR/1999/REC-xpath-19991116/#section-Number-Functions" class="hyperlink" target="_blank">Numeric-Functions</code></a>
                             </div>
                         </div>
 
@@ -1507,7 +1507,7 @@
                                         <td>3</td>
                                     </tr>
                                 </table>
-                                <code>W3C Documentation reference: <a href="https://www.w3.org/TR/1999/REC-xpath-19991116/#function-false" class="hyperlink" target="_blank">Numeric-Functions</code></a>
+                                <code>W3C Documentation reference: <a href="https://www.w3.org/TR/1999/REC-xpath-19991116/#section-Number-Functions" class="hyperlink" target="_blank">Numeric-Functions</code></a>
                             </div>
                         </div>
 
@@ -1544,7 +1544,7 @@
                                         <td>2</td>
                                     </tr>
                                 </table><br>
-                                <code>W3C Documentation reference: <a href="https://www.w3.org/TR/1999/REC-xpath-19991116/#section-String-Functions" class="hyperlink" target="_blank">Numeric-Functions</code></a>
+                                <code>W3C Documentation reference: <a href="https://www.w3.org/TR/1999/REC-xpath-19991116/#section-Number-Functions" class="hyperlink" target="_blank">Numeric-Functions</code></a>
                             </div>
                         </div>