function xmlhttpPost(strURL, paramater, value, goback) {
    var xmlHttpReq = false;
    var self = this;
    // Mozilla/Safari
    if (window.XMLHttpRequest) {
        self.xmlHttpReq = new XMLHttpRequest();
    }
    // IE
    else if (window.ActiveXObject) {
        self.xmlHttpReq = new ActiveXObject("Microsoft.XMLHTTP");
    }
    self.xmlHttpReq.open('POST', strURL, true);
    self.xmlHttpReq.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
    self.xmlHttpReq.onreadystatechange = function() {


        if (self.xmlHttpReq.readyState == 4) {
	sonuc = self.xmlHttpReq.responseText;
	updatepage(sonuc, goback);
	}



    }

    qstr = escape(paramater) +'=' + escape(value);
    self.xmlHttpReq.send(qstr);
}


function updatepage(str, goback){
	    document.getElementById(goback).innerHTML = str;
}






// event worker object constructor
function EventWorker(){
 this.addHandler = EventWorker.addHandler;
}

// event worker static method
EventWorker.addHandler =
 function (eventRef, func) {
  var eventHandlers = eval(eventRef);
  if (typeof eventHandlers == 'function') { // not first handler
   eval(eventRef + " = function(event) {eventHandlers(event); func(event);}");
  } else { // first handler
   eval(eventRef + " = func;");
  }
 }