function popupWindow(url) {
	window.open(url,'popupWindow','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,copyhistory=no,width=320,height=240,screenX=150,screenY=150,top=150,left=150');
}

function tree_zmena(objLI, objIMG){
	objLI = document.getElementById(objLI);
	objIMG = document.getElementById(objIMG);
	if (objIMG.className == 'plus') {
		objIMG.className = 'minus';
		objLI.style.display = 'block';
	} else {
		objIMG.className = 'plus'
		objLI.style.display = 'none';
	}
}

function vyrobce(formular){
	window.location.href = document.form2.search.options[formular.selectedIndex].value;
}

function popupCalc(url) {
	window.open(url,'popupCalc','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,copyhistory=no,width=600,height=500,screenX=100,screenY=100,top=100,left=100');
}

function popupSplatky(url) {
	window.open(url,'popupSplatky','toolbar=no,location=no,directories=no,status=yes,menubar=no,scrollbars=yes,resizable=yes,copyhistory=no,width=700,height=500,screenX=50,screenY=50,top=50,left=50');
}



var request = null;

function createRequest(){
	try {
		request = new XMLHttpRequest();
	} catch (trymicrosoft){
		try {
			request = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (othermicrosoft){
			try {
				request = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (failed){
				request = null;
			}
		}
	}
	if (request == null){
		alert("Váš prohlížeč nepodporuje technologii AJAX!");
	}
}

function setHodnoceni(hod, produkt){
	var url = "/hodnoceni-hlas.php?hod=" + hod + "&id=" + produkt;
	url = url + "&time=" + new Date().getTime();
	createRequest();
	request.open("GET", url, true);
	request.onreadystatechange = updHodnoceni;
	request.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded; charset=Windows-1250');
	request.send(null);
}

function updHodnoceni(){
	if (request.readyState == 4){
		if(request.status == 200) {
			var html = request.responseText;
			document.getElementById("hodnoceni").innerHTML = html;
		}
	}
}