Hide table if criteria is met

[SNMCStrategicSupport]

I'm trying to hide a tabular report if a given comparison returns as false.  I have the below code that works to hide the table no matter the result:

<script language="javascript" type="text/javascript">
function hide_column(column_order)
{
     var tbl = document.getElementsByTagName("table")[0];
     var table_header = tbl.getElementsByTagName('th')[column_order];
     table_header.style.display=stl;
     var rows = tbl.getElementsByTagName('tr');
     for (var row=1; row<rows.length;row++)
        {     
            var cels = rows[row].getElementsByTagName('td');
            cels[column_order].style.display=stl;
        }
}

var stl='none';
hide_column(0);
hide_column(1);
hide_column(2);
hide_column(3);
hide_column(4);
hide_column(5);
hide_column(6);
</script>

 

However, If I'm adding a restriction

     var string = "[@authfield:Authentications_2_Region]",
     substring = "[@field:Location_2_Region_GL]";
     if(string.includes(substring)=false)

I don't know where to put it; I've tried putting it everywhere and can't get it to work right.  Full disclosure: I'm not good with Javascript and may be way off the mark on the formatting...I'm trying to piece this together with W3 Schools and Google.

[SNMCStrategicSupport]

In case someone stumbles across this, I was able to get the solution to work using this string of code:

 

<script language="javascript" type="text/javascript">
     function hide_column(column_order)
{
     var str = '[@authfield:Authentications_2_Region]'; 
     var n = str.indexOf('[@field:Location_2_Region_GL]');
     if(n < 0){
     var tbl = document.getElementsByTagName("table")[0];
     var table_header = tbl.getElementsByTagName('th')[column_order];
     table_header.style.display=stl;
     var rows = tbl.getElementsByTagName('tr');
     for (var row=1; row<rows.length;row++)
        {     
            var cels = rows[row].getElementsByTagName('td');
            cels[column_order].style.display=stl;
        }
}
}
var stl='none';
hide_column(0);
hide_column(1);
hide_column(2);
hide_column(3);
hide_column(4);
hide_column(5);
hide_column(6);

</script>