How to get Checkin button while in the "Edit" form for document library in Sharepoint 2007

I had a customer requirement where he wanted to add a check-in button on the Edit form of a document library.

So that as soon as the required metadata is added to the item, the user can select to check-in the document instead of first clicking the OK button to save and then going back to doc-lib and checkin the document. They basically wanted to avoid the 2 step process, so they want the Checkin operation (as a button) on the edit-form itself.

The simple solution I found was If we add a query string to the end of the edit URL, it will show a check-in button. Something like:

http://server/Documents/Forms/EditForm.aspx?ID=xx&Mode=Upload

 

So I wrote a simple feature to add this as additional "Edit and Checkin" menu to ECB.

The elements file looks like this:

 

Following is the only important part of that feature (elements.xml file):

<?xml version="1.0" encoding="utf-8" ?>

<Elements xmlns="http://schemas.microsoft.com/sharepoint/">

<CustomAction Id="EditAndCheckin"

RegistrationType="List"

RegistrationId="101"

Location="EditControlBlock"

Sequence="2454"

Title="Edit-Properties and Check-In"

Description="Edit the properties and checkin">

<UrlAction Url="javascript:function process(){var str = location.href;str= str.substr(0,str.lastIndexOf('/'));var site='{SiteUrl}';var item={ItemId};window.location.href=str +'/EditForm.aspx?ID='+item+'&amp;Mode=Upload';};process();"/>

</CustomAction>

</Elements>