Custom Label in Javascript

Question

I have a piece of Javascript in a Visualforce page. I would like to change the Status of a Case when a button is clicked invoking my Javascript function. I can't figure out the proper syntax for using a custom label from SFDC. Does anyone know how to accomplish this?

Javascript:

<script type="text/javaScript">
     sforce.connection.sessionId = "{!GETSESSIONID()}";
        function Escalate(){
           var confirmMsg = confirm("Are you sure you want to escalate this case to the Client?");
                var c = new sforce.SObject("Case");
                  if(confirmMsg == true){
                     c.id = "{!Case.Id}";
                     c.Escalate_to_Client__c = true;
                     c.Status = "{!$Label.Case_Status7__c}";
                  sforce.connection.update([c]);  
                  }
        }
</script>

Answer 1

*adding my remark as an answer so the question can be closed by you and won't appear as 'unanswered' in the site statistics

Are you sure that the custom label name ends with "__c "? Looks more like a custom field name. Try this:

c.Status = "{!$Label.Case_Status7}";