How to Create a validation to a list form for "Attach File" for SharePoint

Sometimes the little code - works!

How to do on MOSS 2007 list form a requirement to the attach field?

 

Let build up a validation in JavaScript

The following JS code do it perfectly. All you need is access to the SharePoint Designer. Edit the form (NewForm.aspx or EditForm.aspx). Find a good place to insert the code in the list form, And Copy-Paste the code:

<script type="text/javascript" language="javascript>
function PreSaveItem() {
  var elm = document.getElementById("idAttachmentsTable");
  if (elm == null || elm.rows.length == 0)
  {
    alert("Please attach a document to the request");
    return false;
  }
  if ("function" == typeof (PreSaveAction))
  {
    return PreSaveAction();
  }
  else
    return true;
}
</script>

I Love JavaScript
Roi