Function toType

jquery.js:65–73

( obj )

var support = {};

function toType( obj ) {
	if ( obj == null ) {
		return obj + "";
	}

	return typeof obj === "object" ?
		class2type[ toString.call( obj ) ] || "object" :
		typeof obj;
}

function isWindow( obj ) {
	return obj != null && obj === obj.window;