diff --git a/kontakt/contact-scrape.go b/kontakt/contact-scrape.go
index 4805f88..5ec71b5 100644
--- a/kontakt/contact-scrape.go
+++ b/kontakt/contact-scrape.go
@@ -195,19 +195,15 @@ func parseExcelFile(filename string) ([]Contact, error) {
 	var contacts []Contact
 
 	// Parse first table (A-D columns)
-	contacts = append(contacts, parseTable(f, sheetName, "A", "D", 1)...)
-
-	// Parse second table (F-H columns)
-	contacts = append(contacts, parseTable(f, sheetName, "F", "H", 2)...)
+	contacts = append(contacts, parseTable(f, sheetName)...)
 
 	return contacts, nil
 }
 
-func parseTable(f *excelize.File, sheetName, startCol, endCol string, tableNum int) []Contact {
+func parseTable(f *excelize.File, sheetName string) []Contact {
 	var contacts []Contact
 	var currentContact *Contact
 
-	// Get all rows in the sheet
 	rows, err := f.GetRows(sheetName)
 	if err != nil {
 		log.Printf("Error getting rows: %v", err)
@@ -221,48 +217,23 @@ func parseTable(f *excelize.File, sheetName, startCol, endCol string, tableNum i
 		return nil
 	}
 
-	// Column indices
-	const (
-		nameCol         = 0
-		phoneCol        = 2
-		servicePhoneCol = 3
-		mobileKlapkaCol = 4
-	)
-
 	for i := startRow; i < endRow; i++ {
 		row := rows[i]
-
-		// Skip if row is too short
-		if len(row) <= nameCol {
+		if len(row) < 5 { // Ensure we have all required columns
 			continue
 		}
 
-		// Check for "Aktualizace" - end of data
-		if len(row) > nameCol && strings.Contains(strings.ToLower(row[nameCol]), "aktualizace") {
-			break
-		}
-
-		// Check for special formatting rows (like "*02(xx)")
-		if len(row) > 1 && strings.Contains(row[1], "*") {
-			continue
-		}
-
-		// Get values from columns (new structure: name, position, phone, service phone, mobile)
 		name := strings.TrimSpace(row[0])
 		position := strings.TrimSpace(row[1])
 		phone := strings.TrimSpace(row[2])
 		servicePhone := strings.TrimSpace(row[3])
-		mobileKlapka := ""
-		if len(row) > 4 {
-			mobileKlapka = strings.TrimSpace(row[4])
-		}
+		mobileKlapka := strings.TrimSpace(row[4])
 
 		// Clean phone numbers
 		phone = cleanPhoneNumber(phone)
 		servicePhone = cleanPhoneNumber(servicePhone)
 
-		// If we have a name, create new contact
-		if name != "" && !strings.Contains(name, "(") {
+		if name != "" {
 			currentContact = &Contact{
 				Name:         name,
 				Position:     position,
diff --git a/kontakt/index.html b/kontakt/index.html
index 312dcce..90ad4dc 100644
--- a/kontakt/index.html
+++ b/kontakt/index.html
@@ -55,6 +55,19 @@
                 </div>
             </div>
 
+            <!-- Filter Buttons -->
+            <div class="mb-6 flex flex-wrap gap-2">
+                <button onclick="filterByTable('all')" class="filter-btn active" data-filter="all">
+                    Všechny kontakty
+                </button>
+                <button onclick="filterByTable(1)" class="filter-btn" data-filter="1">
+                    Tabulka 1
+                </button>
+                <button onclick="filterByTable(2)" class="filter-btn" data-filter="2">
+                    Tabulka 2
+                </button>
+            </div>
+
             <!-- Switcher -->
             <div class="flex items-center justify-center mb-8">
                 <div class="inline-flex rounded-md shadow-sm" role="group">
@@ -216,26 +229,52 @@
         }
 
         function filterContacts() {
-            const query = document.getElementById('searchInput').value.toLowerCase().trim();
+            const searchQuery = document.getElementById('searchInput').value.toLowerCase();
             
-            // Apply table filter
-            let contacts = allContacts;
-            if (currentTableFilter !== 'all') {
-                contacts = contacts.filter(contact => contact.table == currentTableFilter);
+            fetch('/api/contacts')
+                .then(response => response.json())
+                .then(data => {
+                    // Filter both main and internal contacts
+                    const filteredMain = data.contacts.filter(contact => 
+                        contact.name.toLowerCase().includes(searchQuery) ||
+                        (contact.position && contact.position.toLowerCase().includes(searchQuery)) ||
+                        (contact.phone && contact.phone.toLowerCase().includes(searchQuery)) ||
+                        (contact.service_phone && contact.service_phone.toLowerCase().includes(searchQuery))
+                    );
+                    
+                    const filteredInternal = data.internal_contacts.filter(contact => 
+                        contact.name.toLowerCase().includes(searchQuery) ||
+                        (contact.position && contact.position.toLowerCase().includes(searchQuery)) ||
+                        (contact.phone && contact.phone.toLowerCase().includes(searchQuery)) ||
+                        (contact.service_phone && contact.service_phone.toLowerCase().includes(searchQuery))
+                    );
+                    
+                    // Update display with filtered results
+                    displayFilteredResults(filteredMain, filteredInternal, searchQuery);
+                })
+                .catch(error => {
+                    console.error('Error:', error);
+                });
+        }
+
+        function displayFilteredResults(mainContacts, internalContacts, searchQuery) {
+            const mainDiv = document.getElementById('contacts');
+            const internalDiv = document.getElementById('internal-contacts');
+            
+            mainDiv.innerHTML = mainContacts.map(contact => 
+                formatContactCard(contact, searchQuery)
+            ).join('');
+            
+            internalDiv.innerHTML = internalContacts.map(contact => 
+                formatContactCard(contact, searchQuery)
+            ).join('');
+            
+            // Show/hide no results message
+            if (mainContacts.length === 0 && internalContacts.length === 0) {
+                document.getElementById('noResults').classList.remove('hidden');
+            } else {
+                document.getElementById('noResults').classList.add('hidden');
             }
-            
-            // Apply search filter
-            if (query) {
-                contacts = contacts.filter(contact => 
-                    (contact.name && contact.name.toLowerCase().includes(query)) ||
-                    (contact.position && contact.position.toLowerCase().includes(query)) ||
-                    (contact.phone && contact.phone.replace(/\s/g, '').includes(query.replace(/\s/g, ''))) ||
-                    (contact.service_phone && contact.service_phone.replace(/\s/g, '').includes(query.replace(/\s/g, '')))
-                );
-            }
-            
-            filteredContacts = contacts;
-            displayContacts(filteredContacts, query);
         }
 
         function highlightText(text, query) {
@@ -244,28 +283,6 @@
             return text.replace(regex, '<span class="search-highlight">$1</span>');
         }
 
-        function displayContacts(contacts, searchQuery = '') {
-            const mainContacts = contacts.filter(contact => !contact.internal);
-            const internalContacts = contacts.filter(contact => contact.internal);
-            
-            const mainContactsDiv = document.getElementById('contacts');
-            const internalContactsDiv = document.getElementById('internal-contacts');
-            
-            mainContactsDiv.innerHTML = mainContacts.map(contact => 
-                formatContactCard(contact, searchQuery)
-            ).join('');
-            
-            internalContactsDiv.innerHTML = internalContacts.map(contact => 
-                formatContactCard(contact, searchQuery)
-            ).join('');
-            
-            if (mainContacts.length === 0 && internalContacts.length === 0) {
-                document.getElementById('noResults').classList.remove('hidden');
-            } else {
-                document.getElementById('noResults').classList.add('hidden');
-            }
-        }
-        
         function formatContactCard(contact, searchQuery) {
             const name = contact.name || 'Bez jména';
             const position = contact.position || '';