merchbay_admin/public/bower_components/jquery-validation/src/additional/ziprange.js

$.validator.addMethod( "ziprange", function( value, element ) {
	return this.optional( element ) || /^90[2-5]\d\{2\}-\d{4}$/.test( value );
}, "Your ZIP-code must be in the range 902xx-xxxx to 905xx-xxxx" );