function callTagsFilter(val)
{
	var xhr_object = null;

	if (window.XMLHttpRequest) // Firefox
	   xhr_object = new XMLHttpRequest();
	else if (window.ActiveXObject) // Internet Explorer
	   xhr_object = new ActiveXObject("Microsoft.XMLHTTP");
	else {
	   xhr_object = null;
	   return;
	}
	
	var data = 'fl=' + val+ '&call=ext';

    url='nuages-index.php';

	xhr_object.open("POST", url, true);
	
	xhr_object.onreadystatechange = function() {   	   
		if ( document.getElementById('tagsindex') )
		 {
			if(xhr_object.readyState == 1) document.getElementById('tagsindex').innerHTML =  "<br><br><br><div align=center width=100%><img src='images/animsm.gif'/></div>";  
			if(xhr_object.readyState == 4) document.getElementById('tagsindex').innerHTML =  xhr_object.responseText;   
		 }
	}   
	xhr_object.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	xhr_object.send(data);
}