function is_empty(a){var b=false;if(a==null){b=true}else{if(a==""){b=true}}return b}function validate_phone_number(b){var a=true;if(!(/^(\+)?[0-9]{2,3}-? ?[0-9 ]{6,15}$/.test(b))){a=false}return a}function validate_email(a){var b=true;if(!(/^[_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)*@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)*(\.[a-zA-Z]{2,4})$/.test(a))){b=false}return b}function validate_field_match(b,a){var c=true;if(b!=a){c=false}return c}function validate_id_number(b){var a=true;if(!(/^[0-9]{6}-? ?[0-9]{0,4}$|([0-9]{3}-? ?[0-9]{3}-? ?[0-9]{3})/.test(b))){a=false}return a};