//******************************************************************************
function GdAjax(url, metoda, funkcija, formData){
	http_request = false;
	if (window.XMLHttpRequest) { // Mozilla, Safari,...
		http_request = new XMLHttpRequest();
		if (http_request.overrideMimeType){
		    http_request.overrideMimeType('text/xml');
		// See note below about this line
		}
	} else if (window.ActiveXObject) { // IE
		try {
			http_request = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			errLog("Msxml2.XMLHTTP"+e.description);
			try {
				http_request = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e) {"Microsoft.XMLHTTP"+errLog(e.description);}
		}
	}
	if (!http_request) {
		alert('Giving up :( Cannot create an XMLHTTP instance');
		return false;
	}
	http_request.onreadystatechange = eval(funkcija);
	if(metoda!=""){
		http_request.open('POST', url, true);
		http_request.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
		http_request.send(formData);
	}else{
		http_request.open('GET', url, true);
		http_request.send(null);
	}
}

//******************************************************************************

function prikaziInfo(){
     if (http_request.readyState == 4) {
      if (http_request.status == 200) {
      	var res = http_request.responseText.split("***");
			if (res[0]=="ok"){
 				alert(res[1]);
			}
    	}else{
       alert('Došlo je do greške na serveru!.Probajte malo kasnije. (' + http_request.status + ').');
      }
    }
}

function openRegForm(){
     if (http_request.readyState == 4) {
      if (http_request.status == 200) {
      	var res = http_request.responseText.split("***");
			if (res[0]=="ok"){
				$('regForm').setStyle('display','');
 				$('regForm').empty().innerHTML=res[1];

				if($('posalji')){
					$('posalji').addEvent('click',function(){
						if($('nick').value=="" || $('email').value==""){
							alert("Morate popuniti obvezatna polja!")
						}else{
							GdAjax("ajax.aspx?action=saveUser", "POST", "prikaziInfo","&ime=" + $('ime').value + "&prezime=" + $('prezime').value + "&nick=" + $('nick').value+ "&godine=" + $('godine').value + "&mjesto=" + $('mjesto').value + "&email=" + $('email').value + "&tel=" + $('tel').value + "&komentar=" + $('komentar').value);
						}
					});
				}
				$('close').addEvent('click',function(){
					$('regForm').setStyle('display','none');
				});
			}
    	}else{
       alert('Došlo je do greške na serveru!.Probajte malo kasnije. (' + http_request.status + ').');
      }
    }
}

function openUserInfo(){
	 if (http_request.readyState == 4) {
	  if (http_request.status == 200) {
	  	var res = http_request.responseText.split("***");
			if (res[0]=="ok"){
				$('userInfo'+res[2]).setStyle('display','');
				$('userInfo'+res[2]).empty().innerHTML=res[1];
				$('close'+res[2]).addEvent('click',function(){
					$('userInfo'+res[2]).setStyle('display','none');
				});
	    	}else{
	       		alert('Došlo je do greške na serveru!.Probajte malo kasnije. (' + http_request.status + ').');
	      }
		}
	}
}