Client-Side Web Form Scripts

Overview: I am looking for two variations of a client-side JavaScript/jQuery script. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ SCRIPT VERSION 1 OF 2: 1. Web page loads containing a visible checkbox (id="iamaCheckbox") in an unchecked state. 2. If visible checkbox (id="iamaCheckbox") is left UNCHECKED: a.) Set value of hidden text form field value (id="PID") to AAAAAAAA11111 3. If visible checkbox (id="iamaCheckbox") is CHECKED: a.) Set value of hidden text form field value (id="PID") to BBBBBBBB22222 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ SCRIPT VERSION 2 OF 2: 1. Web page loads containing a visible checkbox (id="iamaCheckbox") in an unchecked state. 2. When visible checkbox (id="iamaCheckbox") is CHECKED + a numerical value range between 0 and 49 is manually keyed into a visible form field ("TE") a.) Set value of hidden text form field value (id="PID") to AAAAAAAA11111 b.) Set value of hidden text form field value (id="BU") to SM (see ** below) c.) Set value of hidden text form field value (id="CN") to 111 (see ** below) d.) Set value of hidden text form field value (id="CID") to 111A (see ** below) e.) Set value of hidden text form field value (id="OID") to 111B (see ** below) f.) Set value of hidden text form field value (id="DID") to 111C (see ** below) OR 3. When visible checkbox (id="iamaCheckbox") is CHECKED + a numerical value range between 50 and 149 is manually keyed into a visible form field ("TE") a.) Set value of hidden text form field value (id="PID") to AAAAAAAA22222 b.) Set value of hidden text form field value (id="BU") to MD1 (see ** below) c.) Set value of hidden text form field value (id="CN") to 222 (see ** below) d.) Set value of hidden text form field value (id="CID") to 222A (see ** below) e.) Set value of hidden text form field value (id="OID") to 222B (see ** below) f.) Set value of hidden text form field value (id="DID") to 222C (see ** below) OR 4. When visible checkbox (id="iamaCheckbox") is CHECKED + a numerical value range between 150 and 999 is manually keyed into a visible form field ("TE") a.) Set value of hidden text form field value (id="PID") to AAAAAAAA33333 b.) Set value of hidden text form field value (id="BU") to MD3 (see ** below) c.) Set value of hidden text form field value (id="CN") to 333 (see ** below) d.) Set value of hidden text form field value (id="CID") to 333A (see ** below) e.) Set value of hidden text form field value (id="OID") to 333B (see ** below) f.) Set value of hidden text form field value (id="DID") to 333C (see ** below) OR 5. When visible checkbox (id="iamaCheckbox") is CHECKED + a numerical value of 1000 or more is manually keyed into a visible form field ("TE") a.) Set value of hidden text form field value (id="PID") to AAAAAAAA44444 b.) Set value of hidden text form field value (id="BU") to MD4 (see ** below) c.) Set value of hidden text form field value (id="CN") to 444 (see ** below) d.) Set value of hidden text form field value (id="CID") to 444A (see ** below) e.) Set value of hidden text form field value (id="OID") to 444B (see ** below) f.) Set value of hidden text form field value (id="DID") to 444C (see ** below) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ **Requires a simple code-level adjustment force the field to be left empty/blank/null.