function isObj(a, b, msg) {
	var ret = true;
	
	if ( a && b ) {
		for ( var i in a )
			if ( a[i] != b[i] )
				ret = false;

		for ( i in b )
			if ( a[i] != b[i] )
				ret = false;
	} else
		ret = false;

    QUnit.ok( ret, msg );
}
Asserts that two objects are equivalent