Save and Continue Issue

Try making a formula rich text button with this code. It should work in either edit or add modes.  The code below works to add a record and then land the user on the newly added record in edit mode. 

var text RID = IF([Record ID#] >0, ToText([Record ID#]), "%%rid%%");

var text AddRecord = URLRoot() & "db/" & Dbid() & "?a=nwr";
var text EditRecord = URLRoot() & "db/" & Dbid() & "?a=er&rid=" ;

var text URL = 
$AddRecord 
& "&rdr=" & URLEncode($EditRecord) & $RID;

"<a class='SaveBeforeNavigating' data-replaceRid=true style=\"text-decoration:none; background: #1ba802; border-radius: 5px; color: #ffffff; display: inline-block; padding: 0px 0px 0px 0px; width:100px; text-align: center; text-shadow: none; border: 2px solid #1ba802; font-size: 12px \"href='"
& $URL
& "'>Save and Continue Editing</a>"

//NOTE:  The %%RID%% does not seem to like being URLEncoded.