/* THIS FILE CONTAINS FUNCTIONS FOR CREATING A TEMP COOKIE ON THE CLIENTS BROWSER
   IF THEY ARE COMING FROM .SHTML PAGES.
   JUST ADD THE FOLLOWING LINES OF CODE TO THE PAGE YOU WANT TO HAVE THIS FUNCTIONALITY ON:

<!-- Beginning of code -->
   <SCRIPT LANGUAGE="JavaScript">
	var SERVERIP = '<!--#echo var="LOCAL_ADDR"-->';
	var SOURCE = document.referrer;
   </SCRIPT>

   <SCRIPT LANGUAGE="JavaScript" src="tempid.js">
   </SCRIPT>   
<!-- End of code -->
   
*/

function addZeros(thisstring, thislength){
	if (thislength == '') thislength = 0;

	for (var i=0; i<thislength; i++){
		thisstring = "0" + thisstring;
	}

	thisstring = thisstring.substr(thisstring.length-thislength);

	return thisstring;
}

function getTempID() {
	SERVERIP = addZeros((SERVERIP.split("."))[3], 3);
	var random_num = (Math.random()*1000000);
	random_num = (""+random_num).substr(0,3);
	var thisdate = new Date();
	var today = "" + thisdate.getFullYear() + addZeros(thisdate.getMonth()+1, 2) + addZeros(thisdate.getDate(), 2);
	var now = "" + addZeros(thisdate.getHours(), 2) + addZeros(thisdate.getMinutes(), 2) + addZeros(thisdate.getSeconds(), 2);

	var thisid = "T" + today + now + SERVERIP + random_num;

	return thisid;
}

function setTempCookie(){
	var ID = getTempID();
	var expdate = new Date();
	expdate.setTime(expdate.getTime() + (1095*24*60*60*1000));

	var parts = new Array();
	parts = window.location.hostname.split(".");

	var domain = parts[parts.length-2]+"."+parts[parts.length-1];

	document.cookie = "temp="+escape(ID)+"; expires="+expdate.toGMTString()+"; domain=."+domain;
	document.cookie = "source="+escape(getSource())+"; expires="+expdate.toGMTString()+"; domain=."+domain;
	//alert("temp="+escape(ID)+"; expires="+expdate.toGMTString()+"; domain="+domain);
	//alert("source="+escape(getSource())+"; expires="+expdate.toGMTString()+"; domain="+domain);
	//alert(ID);
}

function getCookieVal(offset) {
	var endstr = document.cookie.indexOf (";", offset);
	if (endstr == -1){
		endstr = document.cookie.length;
	}
	return unescape(document.cookie.substring(offset, endstr));
}

function GetCookie(name) {
	var arg = name + "=";
	var alen = arg.length;
	var clen = document.cookie.length;
	var i = 0;
	while (i < clen) {
		var j = i + alen;
		if (document.cookie.substring(i, j) == arg){
			return (getCookieVal(j));
		}
		i = document.cookie.indexOf(" ", i) + 1;
		if (i == 0) break;
	}
	return null;
}

function getSource(){
	if (SOURCE != '' && SOURCE != undefined){
		SOURCE = SOURCE.replace("http://", "");
		SOURCE = SOURCE.replace(/\/.*/, "");
	
		var parts = SOURCE.split(".");
	
		SOURCE = parts[parts.length-2]+"."+parts[parts.length-1];
	} else {
		SOURCE = 'theknot.com';
	}
	
	return SOURCE;
}

if (GetCookie('temp') == null){
	setTempCookie();
}