//Style Sheet Switcher version 1.0 Nov 9th, 2005
//Author: Dynamic Drive: http://www.dynamicdrive.com
//Usage terms: http://www.dynamicdrive.com/notice.htm

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) {
    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 chooseStyle(styletitle, days) {
    if (document.getElementById) {
        setStylesheet(styletitle)
        setCookie("bjfcstyle", styletitle, days)
    }
}

function indicateSelected(element) { //Optional function that shows which style sheet is currently selected within group of radio buttons or select menu 
    var i
    if (selectedtitle != null && (element.type == undefined || element.type == "select-one")) { //if element is a radio button or select menu
        var element = (element.type == "select-one") ? element.options : element
        for (i = 0; i < element.length; i++) {
            if (element[i].value == selectedtitle) { //if match found between form element value and cookie value
                if (element[i].tagName == "OPTION") //if this is a select menu
                    element[i].selected = true
                else //else if it's a radio button
                    element[i].checked = true
                break
            }
        }
    }
}

var selectedtitle = getCookie("bjfcstyle")
if (document.getElementById && selectedtitle != null) //load user chosen style sheet if there is one stored
    setStylesheet(selectedtitle)