var xmlHttp;

// Get the HTTP Object
function GetXmlHttpObject() {
	var xmlHttp=null;
	try {
	 	xmlHttp=new XMLHttpRequest(); // Firefox, Opera 8.0+, Safari
	}
	catch (e) {
		//Internet Explorer
		try {
			xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch (e) {
			xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
		}
	}
	return xmlHttp;
}

function centerShowed()
{
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
 {
 document.getElementById("l_article").innerHTML=xmlHttp.responseText;
 }
}

function showAdmBanner(string)
{
xmlHttp=GetXmlHttpObject();
if (xmlHttp==null)
 {
 alert("Browser does not support HTTP Request");
 return;
 }
var url="/func/banners.php";
url=url+"?str="+string;
url=url+"&sid="+Math.random();
xmlHttp.onreadystatechange=centerShowed;
xmlHttp.open("GET",url,true);
xmlHttp.send(null);
}

function doForm(fname, file, string)
{
	xmlHttp=GetXmlHttpObject();
	if (xmlHttp==null)
	{
		alert("Browser does not support HTTP Request");
		return;
	}
	var url="/func/"+file;
	url=url+"?str="+string;
	var f=document.getElementById(fname);
	for (var i=0;i<f.length;i++)
	{
		url=url+"&val"+i+"="+f.elements[i].value;
	}
	//alert(url);
	
	xmlHttp.onreadystatechange=centerShowed;
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);
}

function Check(f) 
/* 
	Spusta sa po kliknuti na checkbox a v zavislosti od zaskrtnutia nastavi value 
	Lebo doForm potrebuje rozne hodnoty vo 'value' a nie v 'checked'
	f: meno testovaného checkboxu
*/
{
	var x=document.getElementsByName(f);
	if(x[0].checked==true){
		x[0].value = 1;
	}else{
		x[0].value = -1;
	}
}