source/jquery.flot.js
function (value) {
                var bw = options.grid.borderWidth;
                return (((typeof bw === "object" && bw[axis.position] > 0) || bw > 0) && (value === axis.min || value === axis.max));
            }
function (value) {
                var bw = options.grid.borderWidth;
                return (((typeof bw === "object" && bw[axis.position] > 0) || bw > 0) && (value === axis.min || value === axis.max));
            }
function ( value ) { var bw = options . grid . borderWidth ; return ( ( ( typeof bw === "object" && bw [ axis . position ] > 0 ) || bw > 0 ) && ( value === axis . min || value === axis . max ) ) ; }
check if the line will be overlapped with a border
check if the line will be overlapped with a border