// handle query string key/value pairs
// modified by Robert C. Carver, BBConsulting for TheClaytonGroup.org

// handle querystring pairs
function PageQuery(q) {
  if(q.length > 1) this.q = q.substring(1, q.length);
  else this.q = null;
  this.keyValuePairs = new Array();
  if(q) {
    for(var i=0; i < this.q.split("&").length; i++) {
      this.keyValuePairs[i] = this.q.split("&")[i];
    }
  }
  this.getKeyValuePairs = function() { return this.keyValuePairs; }
  this.getValue = function(s) {
    for(var j=0; j < this.keyValuePairs.length; j++) {
      if(this.keyValuePairs[j].split("=")[0] == s)
      return this.keyValuePairs[j].split("=")[1];
    }
    return false;
  }

  this.getParameters = function() {
    var a = new Array(this.getLength());
    for(var j=0; j < this.keyValuePairs.length; j++) {
      a[j] = this.keyValuePairs[j].split("=")[0];
    }
    return a;
  }

    this.getLength = function() { return this.keyValuePairs.length; } 
}

function queryString(key) {
  var page = new PageQuery(window.location.search); 
  return unescape(page.getValue(key)); 
}

function displayItem(key){
  if(queryString(key)=='false') {
    document.write("you didn't enter a ?name=value querystring item.");
  } else {
    document.write(queryString(key));
  }
}