function content(base, by_date, by_subject, by_type, by_country){
	xmlHttp = ajaxIni();
	if(xmlHttp == null){
		alert("Your browser does not support AJAX!");
		return;
	}
	var url = "view_clients_ajax.php";
	url = url + "?op=clients";
	url = url + "&menu=6";
	url = url + "&base=" + base;
	url = url + "&by_date=" + by_date;
	url = url + "&by_subject=" + by_subject;
	url = url + "&by_type=" + by_type;
	url = url + "&by_country=" + by_country;
	xmlHttp.onreadystatechange = callContent;
	xmlHttp.open("GET", url, true);
	xmlHttp.send(null);
}

function callContent(){
	document.getElementById("clients_content").innerHTML = '<p><div>Load...</div></p>';
	if(xmlHttp.readyState == 4){ 
		document.getElementById("clients_content").innerHTML = '';
		document.getElementById("clients_content").innerHTML = xmlHttp.responseText;
	}
}

function ajaxIni(){
	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;
}