jQuery.validator.addMethod("phoneno", function(phone_number, element) {
    	    phone_number = phone_number.replace(/\s+/g, "");
    	    return this.optional(element) || phone_number.length > 9 && 
    	    phone_number.match(/^((\+[1-9]{1,4}[ \-]*)|(\([0-9]{2,3}\)[ \-]*)|([0-9]{2,4})[ \-]*)*?[0-9]{3,4}?[ \-]*[0-9]{3,4}?$/);
    	}, "<br />Please specify a valid phone number");