function formfocus() {
	document.getElementById('q').focus();
}
window.onload = formfocus;



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 ajax_start(url){
	url = url + "&time=" + new Date().getTime();
	document.getElementById("ajax_res").innerHTML = '<img src="/images/loading.gif" border="0" alt="Loading" />';
	createRequest();
	request.open("GET", url, true);
	request.onreadystatechange = ajax_update;
	request.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded; charset=Windows-1250');
	request.send(null);
}

function ajax_update(){
	if (request.readyState == 4){
		if(request.status == 200) {
			var html = request.responseText;
			if (html != '')	document.getElementById("ajax_res").innerHTML = html;
		}
	}
}