RegExpression

var blue1List = ['class', 'using', 'namespace', 'public', 'partial', 'protected', 'void', 'object', 'string', 'for', 'int'];
                $.each(blue1List, function () {
                    var reg = new RegExp("\\b"+this+"\\b", "g");
                    source = source.replace(reg, '<span class="blue1">' + this + '</span>');
                });