diff --git a/Frontend/tools/xpath.html b/Frontend/tools/xpath.html
index 4b75846..a7e30d1 100644
--- a/Frontend/tools/xpath.html
+++ b/Frontend/tools/xpath.html
@@ -163,11 +163,9 @@
                             <a href="#" onClick="return false;"
                                 class="hyperlink collapsible collapsibleMini collapseTrigger"><code>fn:id(object)</code></a>
                             <div class="content">
-                                <div class="section">
                                     Returns the element specified by it's unique id, requires DTD <br>
                                     <br>
                                     <code>W3C Documentation reference: <a href="https://www.w3.org/TR/1999/REC-xpath-19991116/#section-Node-Set-Functions" class="hyperlink" target="_blank">Node-Set-Functions</code></a>
-                                </div>
                             </div>
 
 
@@ -420,11 +418,9 @@
                             <a href="#" onClick="return false;"
                                 class="hyperlink collapsible collapsibleMini collapseTrigger"><code>fn:last()</code></a>
                             <div class="content">
-                                <div class="section">
                                     Returns the position of the last node in the context list <br>
                                     <br>
                                     <code>W3C Documentation reference: <a href="https://www.w3.org/TR/1999/REC-xpath-19991116/#section-Node-Set-Functions" class="hyperlink" target="_blank">Node-Set-Functions</code></a>
-                                </div>
                             </div>
     
     
@@ -441,7 +437,6 @@
                             <a href="#" onClick="return false;"
                                 class="hyperlink collapsible collapsibleMini collapseTrigger"><code>fn:boolean(object)</code></a>
                             <div class="content">
-                                <div class="section">
                                     The boolean function converts its argument to a boolean as follows:
                                     <ul>
                                         <li>a number is true if and only if it is neither positive or negative zero nor NaN</li>
@@ -476,7 +471,6 @@
                                         </tr>
                                     </table><br>
                                     <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>
     
     
@@ -493,7 +487,6 @@
                             <a href="#" onClick="return false;"
                                 class="hyperlink collapsible collapsibleMini collapseTrigger"><code>fn:string(object)</code></a>
                             <div class="content">
-                                <div class="section">
                                     Returns the string representation of the object argument <br>
                                     <b>Arguments and return type:</b>
                                     <table class="table-doc">
@@ -521,7 +514,6 @@
                                         </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">String-Functions</code></a>
-                                </div>
                             </div>
     
     
@@ -538,7 +530,6 @@
                             <a href="#" onClick="return false;"
                                 class="hyperlink collapsible collapsibleMini collapseTrigger"><code>fn:number(object)</code></a>
                             <div class="content">
-                                <div class="section">
                                     The number function converts its argument to a number as follows:
                                     <ul>
                                         <li>a string that consists of optional whitespace followed by an optional minus sign followed by a Number followed by whitespace is converted to the IEEE 754 number that is nearest (according to the IEEE 754 round-to-nearest rule) to the mathematical value represented by the string; any other string is converted to NaN</li>
@@ -574,7 +565,6 @@
                                         </tr>
                                     </table><br>
                                     <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>
     
     
@@ -589,7 +579,6 @@
                             <a href="#" onClick="return false;"
                                 class="hyperlink collapsible collapsibleMini collapseTrigger"><code>fn:avg((arg,arg,...))</code></a>
                             <div class="content">
-                                <div class="section">
                                     Returns the average of the argument values <br>
                                     <b>Arguments and return type:</b>
                                     <table class="table-doc">
@@ -613,7 +602,6 @@
                                         </tr>
                                     </table><br>
                                     <code>W3C Documentation reference: <a href="https://www.w3.org/TR/xpath-functions/#func-avg" class="hyperlink" target="_blank">#func-avg</code></a>
-                                </div>
                             </div>
                         </div>
                     </div>
@@ -627,7 +615,6 @@
                                 <a href="#" onClick="return false;"
                                     class="hyperlink collapsible collapsibleMini collapseTrigger"><code>fn:adjust-date-to-timezone(date,timezone)</code></a>
                                 <div class="content">
-                                    <div class="section">
                                         If the timezone argument is empty, it returns a date without a timezone. Otherwise,
                                         it returns a date with a timezone <br>
                                         <b>Arguments and return type:</b>
@@ -657,7 +644,6 @@
                                             </tr>
                                         </table><br>
                                         <code>W3C Documentation reference: <a href="https://www.w3.org/TR/xpath-functions/#func-adjust-date-to-timezone" class="hyperlink" target="_blank">#func-adjust-date-to-timezone</code></a>
-                                    </div>
                                 </div>
     
     
@@ -672,11 +658,9 @@
                                 <a href="#" onClick="return false;"
                                     class="hyperlink collapsible collapsibleMini collapseTrigger"><code>fn:error()</code></a>
                                 <div class="content">
-                                    <div class="section">
                                         https://www.w3.org/TR/xpath-functions/#func-error <br>
                                         <br>
                                         <code>W3C Documentation reference: <a href="https://www.w3.org/TR/xpath-functions/#func-error" class="hyperlink" target="_blank">#func-error</code></a>
-                                    </div>
                                 </div>
     
     
@@ -692,11 +676,10 @@
                                 <a href="#" onClick="return false;"
                                     class="hyperlink collapsible collapsibleMini collapseTrigger"><code>fn:nilled(node)</code></a>
                                 <div class="content">
-                                    <div class="section">
+
                                         Returns a Boolean value indicating whether the argument node is nilled <br>
                                         <br>
                                         <code>W3C Documentation reference: <a href="https://www.w3.org/TR/xpath-functions/#func-nilled" class="hyperlink" target="_blank">#func-nilled</code></a>
-                                    </div>
                                 </div>
     
     
@@ -704,7 +687,7 @@
                     </div>
                 </span>
                
-                <span name="collapse31">
+                <span name="collapse30">
                     <div class="collapsible">
                         <span>
                             <button class="section-button collapseTrigger" style="border: none">Node-Set</button>
@@ -715,11 +698,9 @@
                             <a href="#" onClick="return false;"
                                 class="hyperlink collapsible collapsibleMini collapseTrigger"><code>fn:last()</code></a>
                             <div class="content">
-                                <div class="section">
                                     Returns the position of the last node in the context list <br>
                                     <br>
                                     <code>W3C Documentation reference: <a href="https://www.w3.org/TR/1999/REC-xpath-19991116/#section-Node-Set-Functions" class="hyperlink" target="_blank">Node-Set-Functions</code></a>
-                                </div>
                             </div>
     
     
@@ -736,7 +717,6 @@
                             <a href="#" onClick="return false;"
                                 class="hyperlink collapsible collapsibleMini collapseTrigger"><code>fn:boolean(object)</code></a>
                             <div class="content">
-                                <div class="section">
                                     The boolean function converts its argument to a boolean as follows:
                                     <ul>
                                         <li>a number is true if and only if it is neither positive or negative zero nor NaN</li>
@@ -771,7 +751,6 @@
                                         </tr>
                                     </table><br>
                                     <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>
     
     
@@ -787,7 +766,6 @@
                             <a href="#" onClick="return false;"
                                 class="hyperlink collapsible collapsibleMini collapseTrigger"><code>fn:string(object)</code></a>
                             <div class="content">
-                                <div class="section">
                                     Returns the string representation of the object argument <br>
                                     <b>Arguments and return type:</b>
                                     <table class="table-doc">
@@ -815,7 +793,6 @@
                                         </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">String-Functions</code></a>
-                                </div>
                             </div>
     
     
@@ -831,7 +808,6 @@
                             <a href="#" onClick="return false;"
                                 class="hyperlink collapsible collapsibleMini collapseTrigger"><code>fn:number(object)</code></a>
                             <div class="content">
-                                <div class="section">
                                     The number function converts its argument to a number as follows:
                                     <ul>
                                         <li>a string that consists of optional whitespace followed by an optional minus sign followed by a Number followed by whitespace is converted to the IEEE 754 number that is nearest (according to the IEEE 754 round-to-nearest rule) to the mathematical value represented by the string; any other string is converted to NaN</li>
@@ -867,7 +843,6 @@
                                         </tr>
                                     </table><br>
                                     <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>
     
     
@@ -883,7 +858,6 @@
                                 <a href="#" onClick="return false;"
                                     class="hyperlink collapsible collapsibleMini collapseTrigger"><code>fn:adjust-date-to-timezone(date,timezone)</code></a>
                                 <div class="content">
-                                    <div class="section">
                                         If the timezone argument is empty, it returns a date without a timezone. Otherwise,
                                         it returns a date with a timezone <br>
                                         <b>Arguments and return type:</b>
@@ -913,7 +887,6 @@
                                             </tr>
                                         </table><br>
                                         <code>W3C Documentation reference: <a href="https://www.w3.org/TR/xpath-functions/#func-adjust-date-to-timezone" class="hyperlink" target="_blank">#func-adjust-date-to-timezone</code></a>
-                                    </div>
                                 </div>
     
                             
@@ -932,11 +905,9 @@
                                 <a href="#" onClick="return false;"
                                     class="hyperlink collapsible collapsibleMini collapseTrigger"><code>fn:error()</code></a>
                                 <div class="content">
-                                    <div class="section">
                                         https://www.w3.org/TR/xpath-functions/#func-error <br>
                                         <br>
                                         <code>W3C Documentation reference: <a href="https://www.w3.org/TR/xpath-functions/#func-error" class="hyperlink" target="_blank">#func-error</code></a>
-                                    </div>
                                 </div>
     
                             
@@ -955,11 +926,10 @@
                                 <a href="#" onClick="return false;"
                                     class="hyperlink collapsible collapsibleMini collapseTrigger"><code>fn:nilled(node)</code></a>
                                 <div class="content">
-                                    <div class="section">
                                         Returns a Boolean value indicating whether the argument node is nilled <br>
                                         <br>
                                         <code>W3C Documentation reference: <a href="https://www.w3.org/TR/xpath-functions/#func-nilled" class="hyperlink" target="_blank">#func-nilled</code></a>
-                                    </div>
+                                    
                                 </div>
     
                             
@@ -979,11 +949,9 @@
                                 <a href="#" onClick="return false;"
                                     class="hyperlink collapsible collapsibleMini collapseTrigger"><code>fn:for-each(sequence*, function)</code></a>
                                 <div class="content">
-                                    <div class="section">
                                         Applies function item to every element in sequence <br>
                                         <br>
                                         <code>W3C Documentation reference: <a href="https://www.w3.org/TR/xpath-functions-30/#func-for-each" class="hyperlink" target="_blank">#func-for-each</code></a>
-                                    </div>
                                 </div>