Weblabor

function postData()
{
 this.container={};

 this.set=function (k,v)
 {
  this.container[k]=v;
 };

 this.get=function (k)
 {
  return this.container[k];
 };

 this.input=function (element)
 {
   switch (element.type.toLowerCase())
   {
    case "hidden": case "text": case "textarea":
     this.container[element.name]=element.value;
     break;
    case "checkbox": case "radio":
     if (element.checked)
      this.container[element.name]=element.value;
     break;
    case "select-one": 
     if (element.selectedIndex!=-1)
     {
      var option=element.options[element.selectedIndex];
      this.container[element.name]=(option.value || option.text);
     }
     break;
    case "select-multiple":
      this.container[element.name]=[];
      for (var j=0; j<element.options.length; j++)
       if (element.options[j].selected)
        this.container[element.name].push(element.options[j].value || element.options[j].text);
     break;
    case "submit": case "image": case "button": default:
     break;
   }
 }

 this.form=function (form)
 {
  if (form.elements)
   for (var i=0; i<form.elements.length; i++)
    this.input(form.elements[i]);
 }

 this.merge=function (obi)
 {
  if (obi instanceof postData)
   obi=obi.container;
  if (typeof obi=="object")
   for (var i in obi)
    this.container[i]=obi[i];
 }

 this.encode=function ()
 {
  var q=[];
  for (var i in this.container)
  {
   var name=encodeURIComponent(i);
   var value=this.container[i];
   if (typeof value=="object")
   {
    if (value instanceof Array)
    {
     for (var j=0; j<value.length; j++)
      q.push(name+encodeURIComponent("[]")+"="+encodeURIComponent(value[j]));
    }
    else
    {
     if (value instanceof postData)
     value=value.container;
     for (var j in value)
      q.push(name+encodeURIComponent("['"+j+"']")+"="+encodeURIComponent(value[j]));
    }
   }
   else
   {
    q.push(name+"="+encodeURIComponent(value));
   }
  }
  return q.join("&");
 }

 this.decode=function (s)
 {
  var q=s.split("&");
  for (var i=0; i<q.length; i++)
  {
   var e=q[i].split("=");
   var name=decodeURIComponent(e[0]);
   var value=decodeURIComponent(e[1]);
   var match=(/^(.*)\[(.*)\]$/).exec(name);
   if (match!= null && match.length>1)
   {
    name=match[1];
    var key=match[2];
    if (typeof this.container[name]!="object") this.container[name]=key==""?[]:{};
    if (this.container[name] instanceof Array) this.container[name].push(value);
    else this.container[name][key.slice(1,-1)]=value;
   }
   else
   {
    this.container[name]=value;
   }
  }
 }

}

function toScript(collection,handler){
 while(collection.length){
  handler.call(collection[0]);
  collection[0].parentNode.removeChild(collection[0]);
 }
}




function init()
{
 toScript(document.getElementsByTagName("postdata"),function (){
  var form=this.parentNode;
  if (form.elements)
  {
   form.data=new postData();
   form.data.form(form);
   for (var i=0; i<form.elements; i++)
    form.elements[i].onblur=function (){this.form.data.input(this)};
  }
 });

}