var keys	= new Array();
var values	= new Array();
var URI		= 'http://webstats.nedstars.nl/collect/collect_mww.php';

function collect()
{
	set('location', URLEncode(location.href));
	set('referer', document.referrer);
	set('screenWidth', screen.width);
	set('screenHeight', screen.height);
	set('screenColorDepth', screen.colorDepth);
	set('java', navigator.javaEnabled());
	set('timezone', new Date().getTimezoneOffset() / -60);
        
	for (i = 0, prefix = '?'; i < keys.length; i++, prefix = '&')
		URI = URI + prefix + keys[i] + '=' + values[i];
}

function set(key, value)
{
	keys[keys.length] = key;
	values[values.length] = value;
}

function webstats()
{
	collect();
	var image = document.createElement('img');
	image.setAttribute('src', URI);
}

function URLEncode(urlstring)
{
	var SAFECHARS = "0123456789" +				
					"ABCDEFGHIJKLMNOPQRSTUVWXYZ" +	
					"abcdefghijklmnopqrstuvwxyz" +
					"-_.!~*'()";					
	var HEX = "0123456789ABCDEF";

	var plaintext = urlstring;
	var encoded = "";
	for (var i = 0; i < plaintext.length; i++ ) {
		var ch = plaintext.charAt(i);
	    if (ch == " ") {
		    encoded += "+";				
		} else if (SAFECHARS.indexOf(ch) != -1) {
		    encoded += ch;
		} else {
		    var charCode = ch.charCodeAt(0);
			if (charCode > 255) {
				encoded += "+";
			} else {
				encoded += "%";
				encoded += HEX.charAt((charCode >> 4) & 0xF);
				encoded += HEX.charAt(charCode & 0xF);
			}
		}
	} 

	return encoded;
}


window.onload = webstats;