FSN#46507 back button op de iOS -app gefixed (nog testen)

svn path=/Website/branches/v2017.2/; revision=36264

APPL/PDA/iface.inc

@@ -67,7 +67,16 @@ function HEADER(params)
     <div class="ui-btn-left">
 <%
       if (params.back) {
-          %><a onclick="window.history.back(1)" data-role="button" data-icon="back" data-iconpos="<%=jQButtonIconpos%>" data-direction="reverse"><%=L("lcl_back")%></a><%
+          %>
+            <script>
+                function goBack() {
+                  history.go(-1);
+                  if (navigator.app)
+                      navigator.app.backHistory();
+                }
+            </script>
+
+          <a onclick="goBack()" data-role="button" data-icon="back" data-iconpos="<%=jQButtonIconpos%>" data-direction="reverse"><%=L("lcl_back")%></a><%
       }
       if (params.search) {
           %><a href="productsearch.asp" data-role="button" data-icon="search" data-iconpos="<%=jQButtonIconpos%>" data-direction="reverse"><%=L("lcl_search")%></a><%