function setPreSelectedImg()
{
var selectedtitle=getCookie("mysheet")
setImage(selectedtitle)
}

function getCookie(Name) { 
var re=new RegExp(Name+"=[^;]+", "i"); //construct RE to search for target name/value pair
if (document.cookie.match(re)) //if cookie found
return document.cookie.match(re)[0].split("=")[1] //return its value
return null
}

function setCookie(name, value, days) {
days=90;
var expireDate = new Date()
//set "expstring" to either future or past date, to set or delete cookie, respectively
var expstring=(typeof days!="undefined")? expireDate.setDate(expireDate.getDate()+parseInt(days)) : expireDate.setDate(expireDate.getDate()-5)
document.cookie = name+"="+value+"; expires="+expireDate.toGMTString()+"; path=/";
}

function deleteCookie(name){
setCookie(name, "moot")
}

function setStylesheet(title) 
{
    var i, cacheobj    
    for(i=0; (cacheobj=document.getElementsByTagName("link")[i]); i++)
    {
        if(cacheobj.getAttribute("rel").indexOf("style") != -1 && cacheobj.getAttribute("title")) 
        {
            cacheobj.disabled = true
            if(cacheobj.getAttribute("title") == title)
            cacheobj.disabled = false //enable chosen style sheet
        }
    }
}
function setImage(title)
{
    if(title!=null)
    {
        var Img = document.getElementById(title)
        Img.src="/App_Themes/CSharp/Images/ThemeIcons/"+title+"2.gif";
    }
}

function chooseStyle(styletitle, days)
{
    if (document.getElementById)
    {
        var selectedtitle=getCookie("mysheet")
        if(selectedtitle!=null)
        {
            var SelectedImg = document.getElementById(selectedtitle)
            SelectedImg.src="/App_Themes/CSharp/Images/ThemeIcons/"+selectedtitle+".gif";
        }
        setImage(styletitle)
        setStylesheet(styletitle)
        setCookie("mysheet", styletitle, days)
    }
}
var selectedtitle=getCookie("mysheet")
if (document.getElementById && selectedtitle!=null) //load user chosen style sheet if there is one stored
    setStylesheet(selectedtitle)