var codeBlocks = findCodeBlocks();

        for (var i = 0; i < codeBlocks.length; ++i) {
            operation(codeBlocks[i], "wrapped");
        }
    }

    function toggleLineWrapping() {
        var checkBox = getCheckBox();

        if (checkBox.checked) {
            forAllCodeBlocks(addClass);
        } else {
            forAllCodeBlocks(removeClass);
        }
    }