function track_user_profile(session_id) {
	
	if (navigator.userAgent.indexOf('Firefox') != -1)
		{
		var browser = "Firefox";
		var index = (navigator.userAgent.indexOf('Firefox') + 8);
		var version = navigator.userAgent.substring(index);
		}
	else if (navigator.userAgent.indexOf('Chrome') != -1)
		{
		var browser = "Chrome";
		var index = (navigator.userAgent.indexOf('Chrome') + 7);
		var version = navigator.userAgent.substring(index);
		}
	else if (navigator.userAgent.indexOf('Safari') != -1)
		{
		var browser = "Safari";
		var index = (navigator.userAgent.indexOf('Safari') + 7);
		var version = navigator.userAgent.substring(index);
		}
	else if (navigator.userAgent.indexOf('MSIE 4.0') != -1)
		{
		var browser = "Internet Explorer";
		var version = "4.0";
		}

	else if (navigator.userAgent.indexOf('MSIE 5.0') != -1)
		{
		var browser = "Internet Explorer";
		var version = "5.0";
		}

	else if (navigator.userAgent.indexOf('MSIE 6.0') != -1)
		{
		var browser = "Internet Explorer";
		var version = "6.0";
		}

	else if (navigator.userAgent.indexOf('MSIE 7.0') != -1)
		{
		var browser = "Internet Explorer";
		var version = "7.0";
		}
	else if (navigator.userAgent.indexOf('MSIE 8.0') != -1)
		{
		var browser = "Internet Explorer";
		var version = "8.0";
		}
	else 
		{
		var browser=navigator.appName;
		var version=navigator.appVersion;
		}


	var screenPixel = screen.colorDepth + "-bit";
	var screenSize = screen.width + "x" + screen.height;
	var cookieEn = navigator.cookieEnabled;
	//var platform = navigator.platform;
	
	if(navigator.appVersion.indexOf('Linux') != -1) 
		var opSys = "Linux"; 
	else if(navigator.appVersion.indexOf('iPhone') != -1)
   		var opSys = "iPhone";
	else if(navigator.appVersion.indexOf('Mac') != -1)
   		var opSys = "Mac OS";
	else if((navigator.appVersion.indexOf('Win') != -1) &&
   		(navigator.userAgent.indexOf('95') != -1))
   		var opSys = "Windows 95"; 
   	else if((navigator.appVersion.indexOf('Win') != -1) &&
	   	(navigator.userAgent.indexOf('98') != -1))
   		var opSys = "Windows 98";
   	else if((navigator.appVersion.indexOf('Win') != -1) &&
	   	(navigator.userAgent.indexOf('NT 5.0') != -1)) 
   		var opSys = "Windows 2000";
   	else if((navigator.appVersion.indexOf('Win') != -1) &&
   		(navigator.userAgent.indexOf('NT 5.1') != -1)) 
   		var opSys = "Windows XP";
   	else if((navigator.appVersion.indexOf('Win') != -1) &&
	   	(navigator.userAgent.indexOf('NT 5.2') != -1)) 
   		var opSys = "Windows 2003";
   	else if((navigator.appVersion.indexOf('Win') != -1) &&
	   	(navigator.userAgent.indexOf('NT 6.0') != -1)) 
   		var opSys = "Windows Vista";
   	else if((navigator.appVersion.indexOf('Win') != -1) &&
   		(navigator.userAgent.indexOf('NT') != -1)) 
   		var opSys = "Windows NT"; 
   	else if(navigator.appVersion.indexOf('Win') != -1)
   		var opSys = "Windows 3.1";
     	else  
     		var opSys = "N/A";
	
	
	var flash ="-",n=navigator;
 	if (n.plugins && n.plugins.length) {

  		for (var i=0;i<n.plugins.length;i++) {

   			if (n.plugins[i].name.indexOf('Shockwave Flash')!=-1) {
    				flash =n.plugins[i].description.split('Shockwave Flash ')[1];

    				break;
    			}
  		}
	
	} else if (window.ActiveXObject) {
	
		for (var i=10;i>=2;i--) {
	
			try {
	
	    			var fl=eval("new ActiveXObject('ShockwaveFlash.ShockwaveFlash."+i+"');");
				if (fl) { flash =i + '.0'; break; }
	
			}
	  		catch(e) {}
	  	}
	
	 }
	
	document.write('<img width="1" height="1" src="/js/profile_tracker.php?bn='+browser+'&bv='+parseFloat(version)+'&sc='+screenSize+'&sp='+screenPixel+'&ce='+cookieEn+'&os='+opSys+'&fl='+flash+'&sid='+session_id+'" />');
}