By clicking one checkbox other checkbox should be disable

I've 2 columns with checkboxes when one column is checked all respective are checked likewise in 2nd column but the problem is here, client wants when One column of checkbox is checked then 2nd column will be disable or throw alert message to check only one column at a time?

function SelectAll1(headerchk, gridId) {

        var gvcheck = document.getElementById(gridId);
        var i, j;
        if (headerchk.checked) {
            for (i = 0; i < gvcheck.rows.length - 1; i++) {
                var inputs = gvcheck.rows[i].getElementsByTagName('input');
               for (j = 1; j < inputs.length; j++) {
                 if (inputs[j].type == "checkbox") {
                        inputs[j].checked = true;
                    }
                }
            }
        }
        else {
            for (i = 0; i < gvcheck.rows.length - 1; i++) {
                var inputs = gvcheck.rows[i].getElementsByTagName('input');
                 for (j = 1; j < inputs.length; j++) {
                   if (inputs[j].type == "checkbox") {
                        inputs[j].checked = false;
                    }
                }
            }
        }
    }

You can ch