function saveStatistics(refValue){
	if (navigator.appName != "Netscape") { 
		wsCol=screen.colorDepth; 
	}else{
		wsCol=screen.pixelDepth;
	}
	
	refValue = refValue+'&scrcol='+wsCol;
	
	var http_request = false;
	
	if (window.XMLHttpRequest) { // Mozilla, Safari,...
		http_request = new XMLHttpRequest();
		if (http_request.overrideMimeType) {
			http_request.overrideMimeType('text/plain');
		}
	} else if (window.ActiveXObject) { // IE
		try {
			http_request = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try {
				http_request = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e) {}
		}
	}
	
	if (!http_request) {
		document.write('<img style="display:none;" src="'+ refValue +'" height="0" width="0" border="0" \/>');
	}else{
		http_request.open('GET', refValue, true);
		http_request.send(null);
	}
}