var queryString = window.location.href;
var links = new Array();
var linksNames = new Array();
var newValue=new Boolean(true);
var historyCount = 2;

function addHistory(pageName)
{
    var linksTemp=getCookie('links');
    var linksNamestemp=getCookie('linksNames');

    if(linksTemp != '' && linksNamestemp != '')
    {
        links=linksTemp.split(",");
        linksNames=linksNamestemp.split(",");
    }

    if(links.length < 1){
        links.push(queryString);
        linksNames.push(pageName);
    }
    else {
        for(var i=0 ; i < links.length ; i++)
        {
            if(links[i] == queryString)
            {
				links=links.slice(0,(i+1));
				linksNames=linksNames.slice(0,(i+1));
                newValue=false;
                break;
            }
        }

        if(newValue)
        {
            if(links.length > historyCount - 1)
            {
                links.push(queryString);
                linksNames.push(pageName);
                links=links.slice(-1 * historyCount);
                linksNames=linksNames.slice(-1 * historyCount);
            }else {
                links.push(queryString);
                linksNames.push(pageName);
            }
        }
    }
    setCookie('links',toSrc(links),1);
    setCookie('linksNames',toSrc(linksNames),1);
}
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());
}

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 toSrc(arrayObj)
{
    var temp='';
    for(var i=0 ; i < arrayObj.length ; i++)
    {
        temp+=arrayObj[i]+',';
    }
    return temp=temp.substring(0,temp.length-1);
}
function getHistory(pageName)
{
    addHistory(pageName);
	 document.write("<ul>");
    for(var i=0 ; i < links.length ; i++)
    {
        if(queryString != links[i])
            document.write("<li><a href='"+links[i]+"'>" + linksNames[i] + "</a></li>\t");
        else
            document.write("<li>"+linksNames[i] +"</li>\t");
    }
	document.write("</ul>");
}