function ajaxFunction(oldal){
	switch(oldal){
		case 'kiskep':
			document.getElementById('nagykep').style.display = 'none';
			document.getElementById(oldal).style.display = 'block';
			document.getElementById('szoveg').style.display = 'block';
			break;
			
		case 'nagykep':
			document.getElementById('kiskep').style.display = 'none';
			document.getElementById('szoveg').style.display = 'none';
			document.getElementById(oldal).style.display = 'block';
			break;
		
		case 'reg_form':
			document.getElementById('login_form').style.display = 'none';
			document.getElementById('line-1').style.display = 'none';
			document.getElementById('kapcs').style.display = 'none';
		case 'login_form':
			if(document.getElementById('reg_form').style.display == 'block'){
				document.getElementById('reg_form').style.display = 'none';
				}
			if(document.getElementById(oldal).style.display == 'none'){
				document.getElementById(oldal).style.display = 'block';

				if (oldal == "login_form") {
					document.getElementById('line-1').style.display = 'block';
					document.getElementById('kapcs').style.display = 'block';
				}
			}
			else{
				document.getElementById(oldal).style.display = 'none';
			}
			break;
		}
	}
	
function ajax(id, kimenet){
	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('eredmeny').innerHTML = "";
			document.getElementById('loader').style.display = 'block';
			document.getElementById('loader').innerHTML = '<img src="static/images/loader.gif" style="padding-left: 250px; padding-top: 140px;">';
			}
		if(ajaxRequest.readyState == 4){						
			document.getElementById('loader').innerHTML = '';
			document.getElementById('loader').style.display = 'none';
			document.getElementById('eredmeny').style.display = 'block';
			
			var ajaxDisplay = document.getElementById('eredmeny');
			ajaxDisplay.innerHTML = ajaxRequest.responseText;
			}
		}
	
	var queryString = "?ajax&id="+ id+"&rnd="+Math.random();
			
	if(kimenet == 'jatek'){
		ajaxRequest.open("GET", "modules/jatek.php" + queryString, true);
	}
	else if(kimenet == 'hirek_'){
		document.getElementById('szolgaltatas').style.display = 'none';
		ajaxRequest.open("GET", "modules/hirek_.php" + queryString, true);
	}
	else if(kimenet == 'partnerek'){
		document.getElementById('szolgaltatas').style.display = 'none';
		ajaxRequest.open("GET", "modules/partnerek.php" + queryString, true);
	}
	else{
		document.getElementById('szolgaltatas').style.display = 'none';
		ajaxRequest.open("GET", "modules/hirek.php" + queryString, true);
	}
		
	
	//galery.setRequestHeader("Content-type", "image/jpeg");
	//ajaxRequest.setRequestHeader("Content-length", parameters.length);
	//galery.setRequestHeader("Connection", "close");
	
	
	ajaxRequest.send(null);
	}