var manual_or_random="manual"
var randomsetting="3 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") : ""
}

function chooseStyle(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"))
	} 
}