src/index.js
function accessor(k) {
	Popup.prototype[k] = function(v) {
		if (typeof v == "undefined") return this["_" + k];
		this["_" + k] = v;
		return this;
	};
}
function accessor(k) {
	Popup.prototype[k] = function(v) {
		if (typeof v == "undefined") return this["_" + k];
		this["_" + k] = v;
		return this;
	};
}
function accessor ( k ) { Popup . prototype [ k ] = function ( v ) { if ( typeof v == "undefined" ) return this [ "_" + k ] ; this [ "_" + k ] = v ; return this ; } ; }
Create accessor methods for all the options
Create accessor methods for all the options