var xmlhttp;

function dynamic_content(tresc,file)
{
	var src;
	if (tresc == 'speedtest')
	{
		src = 'speedtest'; 
	}
	else if (tresc == 'keywords')
	{
		src = document.getElementById(tresc).value;
		src = src+"&p="+document.getElementById('url').value;
	}
	else { src = document.getElementById(tresc).value; }
		
	if (src.length==0)
	{
		document.getElementById('dynamic_content').innerHTML="";
		return;
	}
	xmlhttp=GetXmlHttpObject();
	if (xmlhttp==null)
	{
		alert ("Your browser does not support XMLHTTP!");
		return;
	}
	var url = file;
	url=url+"?q="+src;
	url=url+"&sid="+Math.random();
	xmlhttp.onreadystatechange=stateChanged;
	xmlhttp.open("GET",url,true);
	xmlhttp.send(null);
}

function stateChanged()
{
	if (xmlhttp.readyState==4)
	{
		document.getElementById('dynamic_content').innerHTML=xmlhttp.responseText;
	}
	else 
	{
		document.getElementById('dynamic_content').innerHTML='<img style="border: 0px;" src="images/ajax-loader2.gif"><br/>&nbsp;&nbsp;pobieranie danych...';
	}
}


function GetXmlHttpObject()
{
	if (window.XMLHttpRequest)
	{
		// code for IE7+, Firefox, Chrome, Opera, Safari
		return new XMLHttpRequest();
	}
	if (window.ActiveXObject)
	{
		// code for IE6, IE5
		return new ActiveXObject("Microsoft.XMLHTTP");
	}
	return null;
}

function submitenter(myfield,e,file)
{
	var keycode;
	if (window.event) { keycode = window.event.keyCode; }
	else if (e) { keycode = e.which; }
	else return true;

	if (keycode == 13)
	{
		dynamic_content(myfield,file)
		return false;
	}
	else return true;
}