function galery(id){
	var ajaxRequest;  // ajax változó indítása
	
	try{
		// Opera 8.0+, Firefox, Safari
		ajaxRequest = new XMLHttpRequest();
	} catch (e){
		// explorer
		try{
			ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try{
				ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e){
				// hiba
				alert("Meghalt a böngésző!");
				return false;
			}
		}
	}
	
	ajaxRequest.onreadystatechange = function(){
		if(ajaxRequest.readyState == 1){								
			document.getElementById('nagy_kep').innerHTML = "";
			document.getElementById('loader').style.display = 'block';
			}
		if(ajaxRequest.readyState == 4){						
			document.getElementById('loader').style.display = 'none';
			
			var ajaxDisplay = document.getElementById('nagy_kep');
			ajaxDisplay.innerHTML = ajaxRequest.responseText;
			}
		}
	
	var queryString = "?"+ id;
			
	ajaxRequest.open("GET", "ajax_kep.php" + queryString, true);
	
	//galery.setRequestHeader("Content-type", "image/jpeg");
	//ajaxRequest.setRequestHeader("Content-length", parameters.length);
	//galery.setRequestHeader("Connection", "close");
	
	
	ajaxRequest.send(null);
	}