/**
 * @authors Joana, Igor
 */
function Set_Cookie( name, value, expires, path, domain, secure ) 
{
// set time, it's in milliseconds
var today = new Date();
today.setTime( today.getTime() );

/*
if the expires variable is set, make the correct 
expires time, the current script below will set 
it for x number of days, to make it for hours, 
delete * 24, for minutes, delete * 60 * 24
*/
if ( expires )
{
expires = expires * 1000 * 60 * 60 * 24;
}
var expires_date = new Date( today.getTime() + (expires) );

document.cookie = name + "=" +escape( value ) +
( ( expires ) ? ";expires=" + expires_date.toGMTString() : "" ) + 
( ( path ) ? ";path=" + path : "" ) + 
( ( domain ) ? ";domain=" + domain : "" ) +
( ( secure ) ? ";secure" : "" );
}
function Get_Cookie( check_name ) {
	// first we'll split this cookie up into name/value pairs
	// note: document.cookie only returns name=value, not the other components
	var a_all_cookies = document.cookie.split( ';' );
	var a_temp_cookie = '';
	var cookie_name = '';
	var cookie_value = '';
	var b_cookie_found = false; // set boolean t/f default f
	
	for ( i = 0; i < a_all_cookies.length; i++ )
	{
		// now we'll split apart each name=value pair
		a_temp_cookie = a_all_cookies[i].split( '=' );
		
		
		// and trim left/right whitespace while we're at it
		cookie_name = a_temp_cookie[0].replace(/^\s+|\s+$/g, '');
	
		// if the extracted name matches passed check_name
		if ( cookie_name == check_name )
		{
			b_cookie_found = true;
			// we need to handle case where cookie has no value but exists (no = sign, that is):
			if ( a_temp_cookie.length > 1 )
			{
				cookie_value = unescape( a_temp_cookie[1].replace(/^\s+|\s+$/g, '') );
			}
			// note that in cases where cookie is initialized but no value, null is returned
			return cookie_value;
			break;
		}
		a_temp_cookie = null;
		cookie_name = '';
	}
	if ( !b_cookie_found )
	{
		return null;
	}
}

function getUnique() {
	var cookie = Get_Cookie('unq');
	var d = new Date();
	if ( cookie == null ) {
		Set_Cookie('unq', d.getDate(), 5, '/' );
		return 1;
	}
	if ( cookie != d.getDate() ) {
		Set_Cookie('unq', d.getDate(), 5, '/' );
		return 1;
	}
	else return 0;
	}

function GW_imgLink() {
	var referrer = document.referrer;
	var selfUrl = location.href;
	var w = window;
	var lang = w.navigator.systemLanguage ? w.navigator.systemLanguage : "";
	var width = w.screen.width ? w.screen.width : "";
	var height = w.screen.height ? w.screen.height : "";
	var color = w.screen.colorDepth ? w.screen.colorDepth : "";       
	var pixel = w.navigator.pixelDepth ? w.screen.pixelDepth : "";
	var cpuClass = w.navigator.cpuClass ? w.navigator.cpuClass : "";
	//var brVer = w.navigator.appVersion ? w.navigator.appVersion : "";
	var brVer = w.navigator.userAgent ? w.navigator.userAgent : "";
	if( typeof( parent.document ) != "unknown" )
	{
	 	var tmp = parent.document.URL;
	 	if( document.referrer == tmp ) referrer = parent.document.referrer;
	}
	var unq = getUnique();
	
	var datarandom = new Date();
	//document.write(d.getTime() + " milliseconds since 1970/01/01");
	
	var getParams = "sId=" + sID + "&refer=" + escape(referrer) + "&lpage=" + escape(selfUrl) 
	+ "&userAgent=" + escape(brVer) + "&syslang=" 
	+ escape(lang) + "&res=" + escape(width + "x" + height) + "&cpu=" + escape(cpuClass) + "&unique=" + unq + "&random=" + datarandom.getTime() ;
	var imgTag = "<img border='0' src='http://www.webstatistika.lt/php/stat.php?" + getParams + "'>";

	document.write( "<a href='http://www.webstatistika.lt'>" + imgTag + "</a>" );
}
GW_imgLink();