Restrict closing sctask from the list view only for 1 catalog item

[payalnkunte]

I have created an on celledit client script to restrict sctask to close from list view

but I cannot make it catalog item specific, It is working globally.

function onCellEdit(sysIDs, table, oldValues, newValue, callback) {

    var saveAndClose = true;

    var closedStates = ['3', '4', '7'];

    //Type appropriate comment here, and begin script below

    var gr = new GlideRecord('sc_task');

     gr.addQuery('cat_item', 'a02b27ab3b033210a546bffe23e45a8e');

    gr.query();

    while (gr.next()) {

        var reqItem = gr.cat_item;

    }

// "a02b27ab3b033210a546bffe23e45a8e" is sys_id of catalog item

 if (reqItem == 'a02b27ab3b033210a546bffe23e45a8e') {

  if (closedStates.indexOf(newValue) > -1) {

            alert("You cannot close a Task from the list view. Please open the Task record to close.");

            saveAndClose = false; // prevents closure of sctask on list view

        }

    }

    callback(saveAndClose);

}

for every catalog it is working or it is not working pleas help me in this