/****  AmiJs library    A very small library with DOM and Ajax functions.    For a much larger script look on http://www.mochikit.com/  AUTHOR    4mir Salihefendic (http://amix.dk) - amix@amix.dk  LICENSE    Copyright (c) 2006 Amir Salihefendic. All rights reserved.    Copyright (c) 2005 Bob Ippolito. All rights reserved.    http://www.opensource.org/licenses/mit-license.php  VERSION    1.31 (20/02/06 22:41:35)  SITE    http://amix.dk/amijs ****//****   Assessor functions  ****/function getElement(id) {  if(typeof(id) == "string")     return document.getElementById(id);  else    return id;}var $ = getElement;function getBody() { return getElementsByTagAndClassName('body')[0] };function getElementsByTagAndClassName(tag_name, class_name, /* optional */parent) {  var class_elements = new Array();  if(parent == null || parent == "undefined")    parent = document;  if(tag_name == null || tag_name == "undefined")    tag_name = '*';  var els = parent.getElementsByTagName(tag_name);  var els_len = els.length;  var pattern = new RegExp("(^|\\s)" + class_name + "(\\s|$)");  for (i = 0, j = 0; i < els_len; i++) {    if ( pattern.test(els[i].className) || class_name == null ) {      class_elements[j] = els[i];      j++;    }  }  return class_elements;}/****   DOM manipulation  ****/function appendChildNodes(node/*, nodes...*/) {  if(arguments.length >= 2) {    for(var i = 1; i < arguments.length; i++) {      var n = arguments[i];      if(typeof(n) == "string")        n = document.createTextNode(n);      else if(isDefined(n))        node.appendChild(n);    }  }  return node;}var ACN = appendChildNodes;function replaceChildNodes(node/*, nodes...*/) {  var child;  while ((child = node.firstChild)) {    node.removeChild(child);  }  if (arguments.length < 2) {    return node;  } else {    return appendChildNodes.apply(this, arguments);  }}var RCN = replaceChildNodes;function insertAfter(node, referenceNode) {  referenceNode.parentNode.insertBefore(node, referenceNode.nextSibling);}function insertBefore(node, referenceNode) {  referenceNode.parentNode.insertBefore(node, referenceNode);}function showElement(elm) { elm.style.display = ''; }function hideElement(elm) { elm.style.display = 'none'; }function swapDOM(dest, src) {  dest = getElement(dest);  var parent = dest.parentNode;  if (src) {    src = getElement(src);    parent.replaceChild(src, dest);  } else {    parent.removeChild(dest);  }  return src;}function removeElement(elm) {  swapDOM(elm, null);}function createDOM(name, attrs) {  var i = 1;  elm = document.createElement(name);  if(isDefined(attrs[0]) && typeof(attrs[0]) != "string") {    for(k in attrs[0]) {      if(k == "style")        elm.style.cssText = attrs[0][k];      else if(k == "class")        elm.className = attrs[0][k];      else        elm.setAttribute(k, attrs[0][k]);    }    for(i; i < attrs.length; i++) {      var n = attrs[i];      if(isDefined(n)) {        if(typeof(n) == "string")          n = document.createTextNode(n);        elm.appendChild(n);      }    }  }  else {    //We have just a string...    var n = attrs[0];    if(isDefined(n)) {      n = document.createTextNode(n);      elm.appendChild(n);    }  }  return elm;}var UL = function() { return createDOM.apply(this, ["ul", arguments]); };var LI = function() { return createDOM.apply(this, ["li", arguments]); };var TD = function() { return createDOM.apply(this, ["td", arguments]); };var TR = function() { return createDOM.apply(this, ["tr", arguments]); };var TH = function() { return createDOM.apply(this, ["th", arguments]); };var TBODY = function() { return createDOM.apply(this, ["tbody", arguments]); };var TABLE = function() { return createDOM.apply(this, ["table", arguments]); };var INPUT = function() { return createDOM.apply(this, ["input", arguments]); };var SPAN = function() { return createDOM.apply(this, ["span", arguments]); };var B = function() { return createDOM.apply(this, ["b", arguments]); };var A = function() { return createDOM.apply(this, ["a", arguments]); };var DIV = function() { return createDOM.apply(this, ["div", arguments]); };var IMG = function() { return createDOM.apply(this, ["img", arguments]); };var BUTTON = function() { return createDOM.apply(this, ["button", arguments]); };var H1 = function() { return createDOM.apply(this, ["h1", arguments]); };var H2 = function() { return createDOM.apply(this, ["h2", arguments]); };var H3 = function() { return createDOM.apply(this, ["h3", arguments]); };var BR = function() { return createDOM.apply(this, ["br", arguments]); };var TEXTAREA = function() { return createDOM.apply(this, ["textarea", arguments]); };var FORM = function() { return createDOM.apply(this, ["form", arguments]); };var P = function() { return createDOM.apply(this, ["p", arguments]); };var SELECT = function() { return createDOM.apply(this, ["select", arguments]); };var OPTION = function() { return createDOM.apply(this, ["option", arguments]); };var TN = function(text) { return document.createTextNode(text); };var IFRAME = function() { return createDOM.apply(this, ["iframe", arguments]); };var SCRIPT = function() { return createDOM.apply(this, ["script", arguments]); };/****   Ajax functions  ****/function getXMLHttpRequest() {  var try_these = [    function () { return new XMLHttpRequest(); },    function () { return new ActiveXObject('Msxml2.XMLHTTP'); },    function () { return new ActiveXObject('Microsoft.XMLHTTP'); },    function () { return new ActiveXObject('Msxml2.XMLHTTP.4.0'); },    function () { throw "Browser does not support XMLHttpRequest"; }  ];  for (var i = 0; i < try_these.length; i++) {    var func = try_these[i];    try {      return func();    } catch (e) {    }  }}function doSimpleXMLHttpRequest(url) {  var req = getXMLHttpRequest();  req.open("GET", url, true);  return sendXMLHttpRequest(req);}Deferred = function(req) {  this.callbacks = [];  this.req = req;  this.callback = function (res) {    while (this.callbacks.length > 0) {      var fn = this.callbacks.pop();      res = fn(res);    }  };  this.errback = function(e){    alert("Error encountered:\n" + e);  };  this.addErrback = function(fn) {    this.errback = fn;  };  this.addCallback = function(fn) {    this.callbacks.unshift(fn);  };  this.addCallbacks = function(fn1, fn2) {    this.addCallback(fn1);    this.addErrback(fn2);  };  this.sendReq = function(data) {    if(isDefined(data))      this.req.send(data);    else      this.req.send(null);  };}Deferred.prototype = new Deferred();function sendXMLHttpRequest(req, data) {  var d = new Deferred(req);  var onreadystatechange = function () {    if (req.readyState == 4) {      try {        status = req.status;      }      catch(e) {};      if(status == 200 || status == 304) {        d.callback(req, data);      }      else {        d.errback();      }    }  }  req.onreadystatechange = onreadystatechange;  return d;}function reprString(o) {  return ('"' + o.replace(/(["\\])/g, '\\$1') + '"'  ).replace(/[\f]/g, "\\f"  ).replace(/[\b]/g, "\\b"  ).replace(/[\n]/g, "\\n"  ).replace(/[\t]/g, "\\t"  ).replace(/[\r]/g, "\\r");}function serializeJSON(o) {  var objtype = typeof(o);  if (objtype == "undefined") {    return "undefined";  } else if (objtype == "number" || objtype == "boolean") {    return o + "";  } else if (o === null) {    return "null";  }  if (objtype == "string") {    return reprString(o);  }  var me = arguments.callee;  var newObj;  if (typeof(o.__json__) == "function") {    newObj = o.__json__();    if (o !== newObj) {      return me(newObj);    }  }  if (typeof(o.json) == "function") {    newObj = o.json();    if (o !== newObj) {      return me(newObj);    }  }  if (objtype != "function" && typeof(o.length) == "number") {    var res = [];    for (var i = 0; i < o.length; i++) {      var val = me(o[i]);      if (typeof(val) != "string") {        val = "undefined";      }      res.push(val);    }    return "[" + res.join(",") + "]";  }  res = [];  for (var k in o) {    var useKey;    if (typeof(k) == "number") {      useKey = '"' + k + '"';    } else if (typeof(k) == "string") {      useKey = reprString(k);    } else {      // skip non-string or number keys      continue;    }    val = me(o[k]);    if (typeof(val) != "string") {      // skip non-serializable values      continue;    }    res.push(useKey + ":" + val);  }  return "{" + res.join(",") + "}";}function loadJSONDoc(url) {  var d = doSimpleXMLHttpRequest(url);  var eval_req = function(req) {    return eval('(' + req.responseText + ')');  };  d.addCallback(eval_req);  return d;}function postJSONDoc(url, data) {  var req = getXMLHttpRequest();  req.open("POST", url, true);  req.setRequestHeader("Content-type", "application/x-www-form-urlencoded");  var d = sendXMLHttpRequest(req, data);  return d;}/****   Misc  ****/function keys(obj) {  var rval = [];  for (var prop in obj) {    rval.push(prop);  }  return rval;}function isDefined(o) {  return (o != "undefined" && o != null)}function isArray(obj) {   try { return (typeof(obj.length) == "undefined") ? false : true; }  catch(e)  { return false; }}