var recentCookieName = "recentItems"; //cookieName
var days = 7; // days before expiration
var newString = "";
var num = 5; // number of items to display
var unique ="yes"; //

// create cookie assigning name, value and expiration days
function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

// read cookie by name and list value
function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

// delete cookie by name
function eraseCookie(name) {
	createCookie(name,"",-1);
}

var preCookie = readCookie(recentCookieName);

// append new data to cookie.
function setCookie(){
	var s = curString.replace("^",""); // strips ^ from curent string
	if (!preCookie || preCookie == ""){
	// if cookie does not exist, create it with the current item's data
		newString = curString;
	} else { 
	// If cookie exists, split and compare its content to current item 
		var eachItem = preCookie.split("^");
		for (i = 0; i < num; i++){
			if (eachItem[i] == s ) { 
			unique = "no";
			} 	
		} if (unique == "yes"){
		// if current data is unique, add it to cookie
		  newString = curString + preCookie;
		  } else {
		// if current data is not unique, do not add it to cookie
		  newString = preCookie;

		  }
	}  
	createCookie(recentCookieName,newString,days)
}

//splitting and writing cookie data
function writeRecent(){
	if (preCookie && preCookie != ""){
		var eachItem = preCookie.split("^");
		var i2 = 0
	document.write("<div id=\"recentItemContainer\" class=\"greyBox\">");	
    document.write("<div class=\"greyBoxHeader\">Recently Viewed Items</div>");
		for (i = 0; i < num || i2 < num; i++){
			//only write item if it exists, is not empty and is unique
			if (eachItem[i] && eachItem[i] != ""){
				var eachElement = eachItem[i].split("|");	
				if (eachElement[0] != prodID){
					document.write("<div id=\"recentItem" + i2 + "\"" + "  class=\"recentItem\"> ");
					document.write("<div class=\"recentImg\"><a href=\"" + eachElement[0] + ".html\"><img src=\"" + eachElement[1] + "\" border=\"0\" /></a></div>");
					document.write("<div class=\"recentName\"><a href=\"" + eachElement[0] + ".html\">" + eachElement[2] + "</a></div>");
					if (eachElement[3] && eachElement[3] != ""){
						document.write("<div class=\"recentPrice\">Retail Price: " + eachElement[3] + "</div>");
						}
					if (eachElement[4] && eachElement[4] != ""){
						document.write("<div class=\"recentSprice\">Your Price: " + eachElement[4] + "</div>");
						}
					document.write("</div>");
					i2 = i2 + 1; 
				}
			} else { i2 = i; } // don't increment counter is the current page is already displayed
		}
	document.write("</div>");	
	}	 
}