function getXMLHttpRequestObject(){
		//alert("skrypt uruchomiony");
			var ajax=false;
			if (window.XMLHttpRequest){
				ajax=new XMLHttpRequest();
			} else if (window.ActiveXObject){
				try{
					ajax = new ActiveXObject("Msxm12.XMLHTTP");
				} catch(e) {
				try {
					ajax = new ActiveXObject("Microsoft.XMLHTTP");
					} catch (e) { };
				}
			}
			return ajax;
		};

		function input_search_change(){
			if (document.getElementsByName('search').item(0).value.length>2){
			
				var ajax=getXMLHttpRequestObject();
				if (ajax){
					ajax.open("GET","/glowna_podpowiedz.php?fraza="+encodeURIComponent(document.getElementsByName('search').item(0).value));
					ajax.onreadystatechange = function() {//przetwarzanie  odpowiedzi ajaxa
						handleResponse(ajax);
					}
					ajax.send(null);
				} else document.getElementById('search_hint').innerHTML="nie ma ajaxa";
			} else {ukryj_podpowiedz();}
		}	
		function handleResponse(ajax) {
			if (ajax.readyState==4){
				if (((ajax.status ==200) || (ajax.status ==304)) && ajax.responseText!=""){
					document.getElementById('search_hint').innerHTML=ajax.responseText;
					document.getElementById('search_hint').style.display='block';
				} else document.getElementById('search_hint').style.display='none';
				
			}
		}
		function ukryj_podpowiedz(){
			document.getElementById('search_hint').style.display='none';
		}
		function wybrano_fraze(fraza){
			document.getElementsByName('search').item(0).value=fraza;
			ukryj_podpowiedz();
			
		}