Some Useful Cookie Functions

Like the ones you saw when you entered my Home page.

First you need to define variables and functions inside <HEAD> tag of your HTML file. Just copy the functions between <HEAD> and </HEAD> tags. After the functions are defined in <HEAD> you can easily call a welcome() function just from the place in your document where you want to have that welcome message. Oh, yes! You can edit welcome() function if you want to have other greetings.

<HTML>
<TITLE>Your document title here</TITLE>
<HEAD>

<!-- Cookie Script Written By Maxim V. Kollegov --> 
<!-- http://www.oocities.org/siliconvalley/lakes/8620 --> 
<!-- http://www.oocities.org/siliconvalley/lakes/8620/index.html --> 

<SCRIPT LANGUAGE="JavaScript">
<!-- to hide script contents from old browsers

var visitor
var lastvisited 
var countvalue

// this function extracts cookie by name and return value.

function getCookie(byname)
 {byname=byname+"=";
  nlen = byname.length;
  fromN = document.cookie.indexOf(byname)+0;
    if((fromN) != -1) 
     {fromN +=nlen 
      toN=document.cookie.indexOf(";",fromN)+0;
        if(toN == -1) 
          {toN=document.cookie.length;} 
        return unescape(document.cookie.substring(fromN,toN));
     } return null;
  }

//this function writes to cookie

function setCookie(name,value,time)
 {exp = new Date();
   if((name==null)||(value==null)) return false; 
   if(time==null) time=365*86400000; 
   exp.setTime(exp.getTime()+time);
   document.cookie =escape(name)+"="+escape(value)+"; "+"expires="+exp.toGMTString();
   return true;
 } 

//this function looks into cookie for counter, visitor and lastvisited
function checkAccess()
  {today=new Date();
   countvalue=getCookie("counter");
   visitor=getCookie("visitor");
   lastvisited=getCookie("lastvisited");
   if((countvalue==null)||(countvalue==""))
      {countvalue="0";
       visitor=prompt("Please, Enter Your Name:","");
       if((visitor==null) || (visitor==""))
          visitor="Incognito";
      }
   countvalue=parseInt(countvalue)+1;
   setCookie("counter",countvalue);
   setCookie("visitor",visitor);
   setCookie("lastvisited",today.toGMTString());
  }

//this function writes welcome message into browser.
function welcome()
  {checkAccess();
   s="<center><h2>Welcome, "+visitor+"! </h2>";        
   count = parseInt(countvalue);
   if(count==1)
     {s+="It's your first visit to my virtual home.";}
   else
     {s+="You visited my page "+count+" times. ";
      s+="Last time it was "+lastvisited +"</center>";
     }
   document.writeln(s);
  }

// end hiding contents from old browsers -->
</SCRIPT>
</HEAD>

<BODY>

.....Your document begins here.....

Insert following row in your document, and you will have the welcome message in browser.
<SCRIPT> welcome(); </SCRIPT>

.....Rest of your document...........

</BODY>
</HTML>