/*
Webmonkey GET Parsing Module
Language: JavaScript 1.0

The parsing of GET queries is fundamental
to the basic functionality of HTTP/1.0.
This module parses GET with JavaScript 1.0.

Source: Webmonkey Code Library
(http://www.hotwired.com/webmonkey/javascript/code_library/)

Author: Patrick Corcoran
Author Email: patrick@taylor.org

Modified by Todd Slaughter to handle multiple question marks
*/

function createRequestObject() {

  FORM_DATA = new Object();
    // The Object ("Array") where our data will be stored.

  separator = ',';
    // The token used to separate data from multi-select inputs

  query = '' + this.location;
  query = unescape(query);
    // Get the current URL so we can parse out the data.
    // Adding a null-string '' forces an implicit type cast
    // from property to string, for NS2 compatibility.

  query = query.substring((query.indexOf('?')) + 1);
    // Keep everything after the question mark '?'.

  if (query.length < 1) { return false; }  // Perhaps we got some bad data?

  if (query.indexOf('?') > -1) query = query.split("?").join("&");
    // if there are any EXTRA question marks, convert them to ampersands
	
  keypairs = new Object();
  numKP = 1;
    // Local vars used to store and keep track of name/value pairs
    // as we parse them back into a usable form.

  while (query.indexOf('&') > -1) {
    keypairs[numKP] = query.substring(0,query.indexOf('&'));
    query = query.substring((query.indexOf('&')) + 1);
    numKP++;
      // Split the query string at each '&', storing the left-hand side
      // of the split in a new keypairs[] holder, and chopping the query
      // so that it gets the value of the right-hand string.
  }

  keypairs[numKP] = query;
    // Store what's left in the query string as the final keypairs[] data.

  for (i in keypairs) {
    keyName = keypairs[i].substring(0,keypairs[i].indexOf('='));
      // Left of '=' is name.
    keyValue = keypairs[i].substring((keypairs[i].indexOf('=')) + 1);
      // Right of '=' is value.
    while (keyValue.indexOf('+') > -1) {
      keyValue = keyValue.substring(0,keyValue.indexOf('+')) + ' ' + keyValue.substring(keyValue.indexOf('+') + 1);
        // Replace each '+' in data string with a space.
    }

    keyValue = unescape(keyValue);
      // Unescape non-alphanumerics

    /* This is commented out because in our case, if something is specified twice it's an error
    if (FORM_DATA[keyName]) {
      FORM_DATA[keyName] = FORM_DATA[keyName] + separator + keyValue;
        // Object already exists, it is probably a multi-select input,
        // and we need to generate a separator-delimited string
        // by appending to what we already have stored.
    } else {
      FORM_DATA[keyName] = keyValue;
        // Normal case: name gets value.
    }
    */

    FORM_DATA[keyName] = keyValue;
      // Normal case: name gets value.  This is taken from the if/then/else above.
  }

  return FORM_DATA;
}
FORM_DATA = createRequestObject();
  // This is the array/object containing the GET data.
  // Retrieve information with 'FORM_DATA [ key ] = value'.