function Caseless (dict) { this.dict = dict || {} } Caseless.prototype.set = function (name, value, clobber) { if (typeof name === 'object') { for (var i in name) { this.set(i, name[i], value) } } else { if (typeof clobber === 'undefined') clobber = true var has = this.has(name) if (!clobber && has) this.dict[has] = this.dict[has] + ',' + value else this.dict[has || name] = value return has } } Caseless.prototype.has = function (name) { var keys = Object.keys(this.dict) , name = name.toLowerCase() ; for (var i=0;i