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

function fill_address(user_id, address_element_id) {
	xmlHttp=GetXmlHttpObject();
	if (xmlHttp==null) {
		alert ("Your browser does not support AJAX!");
		return;
	} 

	xmlHttp.onreadystatechange=function() {
		if(xmlHttp.readyState==4) {
			document.getElementById(address_element_id).value=xmlHttp.responseText;
		}
	}
	
	xmlHttp.open("GET","index.php?akcia=get_email&user_id="+user_id,true);
	xmlHttp.send(null);
}

function check_vis(value) {
	if (value == 4) {//poslat mailom
		//document.getElementById('vis1').style.visibility = 'hidden';
		//document.getElementById('vis2').style.visibility = 'visible';
		document.getElementById('vis1').style.display = 'none';
		document.getElementById('vis2').style.display = 'inline';
		document.getElementById('vis3').style.display = 'none';
	} else if (value == 1) {//zoskupit
		document.getElementById('vis1').style.display = 'inline';
		document.getElementById('vis2').style.display = 'none';
		document.getElementById('vis3').style.display = 'inline';
	} else {
		//document.getElementById('vis1').style.visibility = 'visible';
		//document.getElementById('vis2').style.visibility = 'hidden';
		document.getElementById('vis1').style.display = 'inline';
		document.getElementById('vis2').style.display = 'none';
		document.getElementById('vis3').style.display = 'none';
	}
}

function check_vis_import(value) {
	if (value == 3) {//zoskupit
		document.getElementById('vis3').style.display = 'inline';
	} else {
		document.getElementById('vis3').style.display = 'none';
	}
}