var manual_or_random = "manual"
var randomsetting = "1 days"
function getCookie(Name) { 
var re=new RegExp(Name+"=[^;]+", "i");
if (document.cookie.match(re))
return document.cookie.match(re)[0].split("=")[1]
return null
}
function setCookie(name, value, days) {
var expireDate = new Date()
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, randomize) {
var i, cacheobj, altsheets=[""]
for (i=0; (cacheobj=document.getElementsByTagName("link")[i]); i++) {
if (cacheobj.getAttribute("rel").toLowerCase()=="alternate stylesheet" && cacheobj.getAttribute("title")) {
cacheobj.disabled = true
altsheets.push(cacheobj)
if(cacheobj.getAttribute("title") == title)
cacheobj.disabled = false
}
}
if (typeof randomize!="undefined") {
var randomnumber=Math.floor(Math.random()*altsheets.length)
altsheets[randomnumber].disabled=false
}
return (typeof randomize!="undefined" && altsheets[randomnumber]!="")? altsheets[randomnumber].getAttribute("title") : "" //if in "random" mode, return "title" of randomly enabled alt stylesheet
}
function ChangeStyle(styletitle, days) {
if (document.getElementById) {
setStylesheet(styletitle)
setCookie("mysheet", styletitle, days)
}
}
function indicateSelected(element) {
if (selectedtitle!=null && (element.type==undefined || element.type=="select-one")) {
var element=(element.type=="select-one") ? element.options : element
for (var i=0; i<element.length; i++) {
if (element[i].value==selectedtitle) {
if (element[i].tagName=="OPTION") {
element[i].selected=true
} else
element[i].checked=true
break
}
}
}
}
if (manual_or_random=="manual") {
var selectedtitle=getCookie("mysheet")
if (document.getElementById && selectedtitle!=null)
setStylesheet(selectedtitle)
} else 
if (manual_or_random=="random") {
if (randomsetting=="eachtime") {
setStylesheet("", "random")
} else 
if (randomsetting=="sessiononly") {
if (getCookie("mysheet_s") == null) {
document.cookie="mysheet_s="+setStylesheet("", "random")+"; path=/"
} else
setStylesheet(getCookie("mysheet_s"))
} else 
if (randomsetting.search(/^[1-9]+ days/i)!=-1) {
if (getCookie("mysheet_r") == null || parseInt(getCookie("mysheet_r_days")) != parseInt(randomsetting)) {
setCookie("mysheet_r", setStylesheet("", "random"), parseInt(randomsetting))
setCookie("mysheet_r_days", randomsetting, parseInt(randomsetting))
} else
setStylesheet(getCookie("mysheet_r"))
} 
}