// Készítette: Triliton Informatikai Kft. 2008, info@triliton.hu
											      
function toHex(n) 
 {   
 var hexchars = "0123456789ABCDEF";   
 return hexchars.charAt(n>>4)+hexchars.charAt(n & 0xF);   
 }   

function encURI(s) 
 {   
 if (!s) return;
 var okURIchars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_-=";   
 var c;   
 var enc = "";   
 for (var i= 0; i<s.length; i++) 
  {   
  switch (s.charAt(i))
   {
   case "Ű": enc+="%"+toHex(219);break;
   case "ű": enc+="%"+toHex(251);break;
   case "Ő": enc+="%"+toHex(213);break;
   case "ő": enc+="%"+toHex(245);break;
   default: if (okURIchars.indexOf(s.charAt(i)) == -1) enc += "%" + toHex(s.charCodeAt(i));   
    else enc += s.charAt(i);   
   }
  }   
 return enc;   
 }   

function Ajax()
 {
 var url;		//lekérdezett URL
 var method;		//lekérdezés típusa (GET,POST)
 var state;		//állapotkijelzésre szolgáló elem ID-je
 var name;		//állapotkijelzésnél az állapotnál megjelenített prefix név
 var target;		//feldolgozott lekérdezés kiemenetét megadó ID
 var aj=this;
 this.Ajax=function() {};

 this.sendForm=function(url,target,state,pstid)
  {
  p="";
  if (document.getElementById(pstid))
   {
   var f=document.getElementById(pstid);
   i=0;
   i2=0;
   while(i<f.elements.length)
    {
    if(f.elements[i].name)
     {
     if(i2>0) { p+="&"; }
     if((f.elements[i].tagName=="INPUT") && (f.elements[i].type=="checkbox"))
      {
      null;
      }
     else
      {
      p+=f.elements[i].name+"="+encURI(f.elements[i].value);
      }
     i2++;
     }
    i++;
    }
   }
  this.makeRequest("POST",url,target,state,null,null,p);
  }

 this.makeRequest=function(method,url,target,state,name,callbackMethod,pst)
  {
  this.target=target;
  this.url=url;
  this.method=method;
  this.state=state;
  this.name=name;
  this.request=(window.XMLHttpRequest)? new XMLHttpRequest(): new ActiveXObject("MSXML2.XMLHTTP");
  this.request.open(method,url,true);
  this.request.setRequestHeader("Content-Type", "application/x-www-form-urlencoded; charset=iso-8859-2"); 
  this.request.setRequestHeader("Connection", "close"); 
  this.request.setRequestHeader("Content-length", pst.length);
  this.request.send(pst);
  if (callbackMethod)
   {
   this.request.onreadystatechange=callbackMethod;
   }
  else
   {
   this.request.onreadystatechange=function()
    {
    if(aj.checkReadyState()=="200") 
     {    
     if(aj.target) { document.getElementById(aj.target).innerHTML=aj.getResponse().getElementsByTagName('htm')[0].firstChild.data; }
     } 
    }
   }
  }

 this.checkReadyState=function()
  {
  if (document.getElementById(this.state))
   {
   switch(this.request.readyState)
    {
    case 0: document.getElementById(this.state).innerHTML=this.name+'betöltés folyamatban...'; break;
    case 1: document.getElementById(this.state).innerHTML=this.name+'betöltés folyamatban...'; break;
    case 2: document.getElementById(this.state).innerHTML=this.name+'betöltés folyamatban...'; break;
    case 3: document.getElementById(this.state).innerHTML=this.name+'betöltés folyamatban...'; break;
    case 4: 
     document.getElementById(this.state).innerHTML='';
     return this.request.status;
    default: document.getElementById(this.state).innerHTML=this.name+'Váratlan hiba.'; break;
    }
   }
  else { return this.request.status; }
  }

 this.getResponse=function()
  {
  if(this.request.getResponseHeader('Content-Type').indexOf('xml') != -1)
   { return this.request.responseXML.documentElement; }
  else { return this.request.responseText; }
  }
 
 }