// JavaScript Functions
// Popup Windows, Bookmarks, Basic Spam Protector, Styleswitcher

// Bookmark Page
function addBookmark(url,title) {
if (window.sidebar) {
	window.sidebar.addPanel(title, url,"");
} else if( document.all ) {
	window.external.AddFavorite( url, title);
} else if( window.opera && window.print ) {
	return true;
	}
}

// Open Catalogue Window
function launchCatalogue( windowURL, windowName, windowFeatures ) { 
	return window.open( windowURL, windowName, windowFeatures ) 
}

// no spam email link
function mailMe(name,domain) { 
	putItTogether = "mailto:" + name + "@" + domain; 
	window.location = putItTogether;
}

// display current Year
function copyrightYear() {    
	today=new Date();
    thisYear=today.getFullYear();
	document.write(thisYear);
}

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