var http_request = false;
   var cur_check;
   function makePOSTRequest(url, parameters,metoda) {
      http_request = false;
      if (window.XMLHttpRequest) { // Mozilla, Safari,...
         http_request = new XMLHttpRequest();
         if (http_request.overrideMimeType) {
         	// set type accordingly to anticipated content type
            //http_request.overrideMimeType('text/xml');
            http_request.overrideMimeType('text/html');
         }
      } else if (window.ActiveXObject) { // IE
         try {
            http_request = new ActiveXObject("Msxml2.XMLHTTP");
         } catch (e) {
            try {
               http_request = new ActiveXObject("Microsoft.XMLHTTP");
            } catch (e) {}
         }
      }
      if (!http_request) {
         alert('Cannot create XMLHTTP instance');
         return false;
      }

      if(metoda=='username')
      	http_request.onreadystatechange = alertWhat;
        else
        http_request.onreadystatechange = alertWhatEmail;
      http_request.open('POST', url, true);
      http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
      http_request.setRequestHeader("Content-length", parameters.length);
      http_request.setRequestHeader("Connection", "close");
      http_request.send(parameters);
   }

function performAjaxCheck(fieldu,metoda)
{
  	clearMesajBy(metoda);
	document.getElementById("output_"+fieldu).innerHTML=' <table cellpadding="5px" cellspacing="0px"><tr><td><img src="index/loading.gif"></td></tr></table>';

	var info = (document.forms['newplayer'].elements[fieldu].value);

	var maiDeparte=true;
	if(metoda=="nu")
	{
		if(fieldu=='username')
			maiDeparte=checkLength(info, fieldu,2,80,fieldu);
			else
			{
				var maiDeparte2=echeck(info);
				if(maiDeparte2 != "da")
				{

					mesaj(maiDeparte2);
					document.getElementById("output_email").innerHTML='<table cellpadding="5px" cellspacing="0px"><tr><td><img src="index/notbullet.gif"></td></tr></table>';
                    maiDeparte=false;

					}

				}
	}

	var poststr="id="+encodeURI(info)+"&type="+encodeURI(fieldu)+"&show="+encodeURI(metoda);

	if(maiDeparte === true)
   		makePOSTRequest('js/checkunicity.php', poststr,fieldu);
}

function alertWhat()
{
var metoda='username';
if(http_request.readyState == 4) {
         if (http_request.status == 200) {
            var result = http_request.responseText;
            var mesaju = result.split("|||");
           document.getElementById("output_"+metoda).innerHTML=mesaju[1];
           if(mesaju[2] != 'ok')
           	mesaj(mesaju[3],metoda);
         } else {
         /*   alert('There was a problem with the request.');   */
         }
      }

}

function alertWhatEmail()
{
var metoda='email';
if(http_request.readyState == 4) {
         if (http_request.status == 200) {
            var result = http_request.responseText;
                       var mesaju = result.split("|||");
           document.getElementById("output_"+metoda).innerHTML=mesaju[1];
           if(mesaju[2] != 'ok')
           	mesaj(mesaju[3],metoda);
         } else {
           /* alert('There was a problem with the request.');   */
         }
      }

}