i am new to SharePoint, and i am using SharePoint 2013, here i am trying to implement the two level cascading drop downs. so till now i have loaded spservice.js and jquery library through the master page. here my problem is i don't know where i want to write spservice script. before that i followed this link http://www.bentedder.com/sharepoint-sketches-spservices-cascading-dropdowns/ i am using sharepoint designer 2013... from that link he said to write he script inside the PlaceHolderAdditionalPageHead content place holder, but it is not editable and i tried the following way its too not working
<asp:content ContentPlaceHolderID="aaaa" runat="server"> <script type="text/javascript"> $(document).ready(function(){ $().SPServices.SPCascadeDropdowns({ relationshipList: "States", relationshipListParentColumn: "Country", relationshipListChildColumn: "Title", parentColumn: "Country", childColumn: "State", debug: true }) }) </script> </asp:content> </ZoneTemplate></WebPartPages:WebPartZone> </td> but its show the error message like Web Part Error: Unknown server tag. Correlation ID: f674859c-4cb4-60ab-2e10-2d42828b0ea5.
