_vsForceMDAPgID = '';






function setCookie(c_name,value,expiredays)

{

	var exdate=new Date();

	exdate.setDate(exdate.getDate()+expiredays);

	document.cookie=c_name+ "=" +escape(value)+

	((expiredays==null) ? "" : ";expires="+exdate.toGMTString())+

	";path=/"+

	";domain=" + _getDomain();

}



function _getDomain() {

	var d = document.domain;	

	if (d.substring(0,4)=="www.") {

		d=d.substring(4,d.length);

	}

	d=d.toLowerCase();

	return d;

}



function getCookie(c_name)

{

	if (document.cookie.length>0)

	{

		c_start=document.cookie.indexOf(c_name + "=");

		if (c_start!=-1)

		{ 			

			c_start=c_start + c_name.length+1; 

			c_end=document.cookie.indexOf(";",c_start);

			if (c_end==-1) c_end=document.cookie.length;

				return unescape(document.cookie.substring(c_start,c_end));

		} 

	}

	return "";

}



function isCookieSet(cookieName)

{

	cookieVal = getCookie(cookieName);

	if (cookieVal != null && cookieVal != "")

		return true;

	

	return false;

}



function u_timestamp()

{

	return parseInt(new Date().getTime().toString().substring(0, 10));

}



function _dummyVoid() { return; }



function isNewSession()

{

	return !isCookieSet('_vss');

}



function isNewVisit()

{

	return !isCookieSet('_vsvis');

}



function parseVisitorID()

{

	return getCookie('_vsvis').split('.')[0];

}



function parseSessionNumber()

{

	return parseInt(getCookie('_vsvis').split('.')[1]);

}





function updateVisitorCookie(visitorID,visitNumber)

{

		setCookie('_vsvis',visitorID + '.' + visitNumber ,365*5);

}



function generateVisitorID()

{

	return hashString(uniqid());

}



function hashString(s) {

	if (!s || s=="") return 1;

	var h=0,g=0;

	for (var i=s.length-1;i>=0;i--) {

		var c=parseInt(s.charCodeAt(i));

		h=((h << 6) & 0xfffffff) + c + (c << 14);

		if ((g=h & 0xfe00000)!=0) h=(h ^ (g >> 21));

	}

	return h;

}



function uniqid()

{

	var result, i, j;

	result = '';

	for(j=0; j<32; j++)

	{

		if( j == 8 || j == 12|| j == 16|| j == 20)

			result = result;

		i = Math.floor(Math.random()*174174).toString(16).toUpperCase();

		result = result + i;

	}

	return result;

}



function trackPage()

{		

	sourcePageID = getCookie('_cpid');	// This is Last PageID before overwriting the cookie.	

	isReload = 0;

	_vstl = '';

    try{
        if(_vssale)blah=1/0;
		}catch(e){
            _vssale=0;
			}
    
     
	if (sourcePageID == _vspg) {	// This is a page reload. (or a dynamic page?)

		sourcePageID = '';	// Ignore reloads, etc...

		isReload=1;

	}



	if (isNewVisit()) {

		visitorID = generateVisitorID();

		sessionNumber = 1;

		setCookie('_vss',u_timestamp());

		setCookie('_vstl',_vstl);

	} else {

		

		// Returning visitor

		visitorID = parseVisitorID();

		sessionNumber = parseSessionNumber();

		
			if (isNewSession()) {
			sessionNumber++; setCookie('_vss',u_timestamp());
			
			if(_vstl == '')
			setCookie('_vstl',_vstl);
			
			}
	

	}

	

	

	// Update persistent cookie

	updateVisitorCookie(visitorID,sessionNumber);

	

	// Remember *this* page as the Current Page (to be used in next pages)	

	setCookie('_cpid',_vspg);
			
    


	// Log this view as necessary

	var i=new Image(1,1);

    if(_vssale !=null){
    	
	i.src='http://www.visiolo.com/visiolo.php?p=' + _vspg + '&vid=' + visitorID + '&spid=' + sourcePageID + '&sn=' + sessionNumber + '&ss=' + getCookie('_vss') + '&vstl=' + getCookie('_vstl') + '&mdaPgID=' + _vsForceMDAPgID + '&isr=' + isReload + '&vssale=' + _vssale;
	}
	else{
	i.src='http://www.visiolo.com/visiolo.php?p=' + _vspg + '&vid=' + visitorID + '&spid=' + sourcePageID + '&sn=' + sessionNumber + '&ss=' + getCookie('_vss') + '&vstl=' + getCookie('_vstl') + '&mdaPgID=' + _vsForceMDAPgID + '&isr=' + isReload;	
		
		}

	i.onload=function() { _dummyVoid(); }	

}



function _vsForceSrcPg(pgid){_vsForceMDAPgID = pgid;}

function forceSetPgID(pgid) {_vsForceSrcPg(pgid);}