Mặc dù không phải tất cả các trình duyệt hỗ trợ tính năng xen kẽ của Progressive JPEG, họ làm cho hình ảnh không phân entry mới nhất vào lĩnh vực Web đồ họa Mạng định dạng đồ họa di động, hoặc PNG. Kết hợp tốt nhất của cả hai thế giới, PNG lossless nén, như GIF, và có khả năng trong việc xử lý hàng triệu màu sắc, như JPEG. | 570 Part III Incorporating Dynamic Data 3. Select JavaScript from the Language list. 4. Enter the desired functions into the Content text area. You can enter as many of the functions as you d like or all of them. 5. Click OK when you re done. If you re more familiar with JavaScript you can enter the functions directly through Dreamweaver s Code view. The functions may be inserted into an existing script . . . script tag pair or you can create your own. Now you re ready to add the final piece of the basic puzzle the hidden variables. Step 4 Insert the hidden variables So far everything you ve done could also be done in a static Web page but it s time to add the server-side component. Whenever a Recordset Paging server behavior is applied whether manually or automatically by inserting a Application Object Dreamweaver writes a bit of server-side code in the href attribute of the a tag surrounding the trigger element. It is this code that you must make accessible in order for the Flash Button to work properly as a recordset navigation tool. The server-side code varies from server model to server model but in essence it s quite similar. Here for example is the code inserted when a Move To Next Record server behavior is applied ASP -- MM_moveNext ColdFusion - - cfoutput MM_moveNext cfoutput JSP - MM_moveNext .NET - SCRIPT_NAME rs_currentPage 1 To keep this code accessible for server-side processing and viable for the JavaScript function to use it must be embedded in a hidden variable form element. After the code is transferred the temporary recordset navigation elements previously inserted can be deleted. Here s how to accomplish this task step by step 1. Select the text link that matches the recordset navigation intended for your Flash Button. You can start anywhere because you re eventually going to add Flash Buttons for all your recordset navigation moves. 2. From the Property inspector select and copy the value of the href .
