Disable delete button in details page

[bookish]

Happy holidays! How can I disable the delete button in the details page if the value in my STATUS field is "FINISHED"?

[bookish]

If it will help any newbie like me, this code has worked.

<SCRIPT LANGUAGE="JavaScript">

var status = document.getElementById("EditRecordSTATUS").value;

if(status === "FINISHED"){
      document.getElementById('Mod0DeleteRecord').style.display="none";

   }

</SCRIPT>