first row shows position no, it is possible to add positions w/o voucher

ka.php

@@ -247,6 +247,7 @@ Grund für abweichende kontoinhabende Person"></textarea>
 				<thead>
 				<tr>
 <!--					<th>Auslagenart</th>-->
+					<th>Pos.</th>
 					<th>Datum</th>
 					<th>Beschreibung</th>
 					<th>Betrag</th>

kaform.js

@@ -3,11 +3,11 @@ var currentRowId=1;
 var banktype = "bank-eu";
 
 function renumberTableRows(){
-    var row_no=1;
-    var table = document.getElementById("tabbody");
-    for (var i = 0, row; row = table.rows[i]; i++) {
-//	row.cells[0].innerHTML=row_no++;
-    }
+	var row_no=1;
+	var table = document.getElementById("tabbody");
+	for (var i = 0, row; row = table.rows[i]; i++) {
+		row.cells[0].innerHTML=row_no++;
+	}
 	return i;
 }
 
@@ -149,8 +149,8 @@ function addTableRow(){
    	var children = target.children;
 
 	if (!children.length){
-		showAlert("Bitte lade mindestens einen Beleg hoch!");
-		return;
+//		showAlert("Bitte lade mindestens einen Beleg hoch!");
+//		return;
 	}
 
 
@@ -159,7 +159,7 @@ function addTableRow(){
 
 /*	a_type = "Hello";*/
 
-    var e="";
+    var e="<td></td>";
 
     // add column for position no
 //    e += `<td>${a_type}
@@ -213,7 +213,7 @@ function addTableRow(){
     
     $node.append(element);
     element.innerHTML=(e);
-//    renumberTableRows();
+    renumberTableRows();
     currentRowId++;
 	reset2();
 	disableCurrency();