$.fn.validVal.customValidations = {	'nl_postalcode': function( val ) {		var v = val.split( ' ' ).join( '' );		//	Empty value is OK, required-test will follow if clas="required".		if ( v.length == 0 ) {			return true;		}		//	NL postalcode should be formatted as: "1234AB".		if ( v.length != 6 ||			isNaN( v.charAt( 0 ) ) || 			isNaN( v.charAt( 1 ) ) ||			isNaN( v.charAt( 2 ) ) ||			isNaN( v.charAt( 3 ) ) ||			!isNaN( v.charAt( 4 ) ) ||			!isNaN( v.charAt( 5 ) )		) {			return false;		} else {			return true;				}	}};