We have a Visualforce page that has Script from a Heroku App that suddenly stopped working. I'm not familiar with Heroku and I believe our previous Salesforce Admin wrote the code. Is there a way from Salesforce to access a Heroku App? Is the previous admin the only person who would have access to this?

The script starts like this:
 

<script type="text/javascript">
    var host = "https://(ourcompanyname).herokuapp.com";

With (ourcompanyname) showing one of our domains. I don't have a Heroku login and I don't know if creating one will give me access to this speicfic app.

Hi Team,
I have one  requirement.
I need to write formula field...

I have a check_box__c field 
1) check_box__c checked or uncheked +  Type__c != 'ABC' we need to make the Discount__c field blank.

2)  check_box__c checked + Type__c = 'ABC' then we need to do like below
 

Model_Type__c	Discount
Model 1	1000
Model 2	2000
Model 3	3000
Model 4	4000

Please help me on this. Thanks in Advance...
Thanks 
Venkat.