function onInput(e)
{
  if(e.which==13) { }
  else if(e.keyCode==13) {
	  sendRequest();
   
  }
	}



function createXMLHttpRequest() {
 var ua;
  if(window.XMLHttpRequest) {
    try {
      ua = new XMLHttpRequest();
    } catch(e) {
      ua = false;
    }
  } else if(window.ActiveXObject) {
    try {
      ua = new ActiveXObject("Microsoft.XMLHTTP");
    } catch(e) {
      ua = false;
    }
	
  }
  return ua;
}

var req = createXMLHttpRequest();


var seite_x = 1;
var q;
var q_alt = 0;
function sendRequest(seite) {
	q = document.getElementById("q").value;
	
if(q != q_alt) { seite_x = 1; }	
	
		if(seite== "+") {
			seite_x = seite_x + 1;
			}
		if(seite == "-") {
			seite_x = seite_x - 1;
		}
	

document.getElementById("suche_navi").style.visibility="hidden";
document.getElementById("zurueck").style.visibility="hidden";
document.getElementById("weiter").style.visibility="hidden";

document.getElementById("suchergebnis").style.display="none";
document.getElementById("active").style.display="block";



  req.open('get', '/php/suche.php?q='+q+'&seite='+seite_x);
  req.onreadystatechange = handleResponse;
  req.send(null);
  
}

function handleResponse() {
  if(req.readyState == 4){
    var response = req.responseText;
    var update = new Array();

    if(response.indexOf('||' != -1)) {
      update = response.split('||');
	  
	  q_alt = q;

	  document.getElementById("active").style.display="none";
	  document.getElementById("suchergebnis").style.display="block";
	  
	   document.getElementById("suchergebnis").innerHTML = update[0];
	
	  if(update[1] == 1) {
		  document.getElementById("suche_navi").style.visibility="visible";
		  document.getElementById("weiter").style.visibility="visible";
		  
	  	}
	  if(update[1] == 0) {
		  document.getElementById("suche_navi").style.visibility="hidden";
	  	}
		
	
		if(seite_x > 1) {
				document.getElementById("zurueck").style.visibility="visible";
				}
		else { document.getElementById("zurueck").style.visibility="hidden"; }
		
		
	  
    }
  }
}