function setActiveStyleSheet(title) {
  var i, a, main;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {
      a.disabled = true;
      if(a.getAttribute("title") == title) a.disabled = false;
    }
  }
}

function getActiveStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title") && !a.disabled) return a.getAttribute("title");
  }
  return null;
}

function getPreferredStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1
       && a.getAttribute("rel").indexOf("alt") == -1
       && a.getAttribute("title")
       ) return a.getAttribute("title");
  }
  return null;
}

function createCookie(name,value,days) {
  if (days) {
    var date = new Date();
    date.setTime(date.getTime()+(days*24*60*60*1000));
    var expires = "; expires="+date.toGMTString();
  }
  else expires = "";
  document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
  var nameEQ = name + "=";
  var ca = document.cookie.split(';');
  for(var i=0;i < ca.length;i++) {
    var c = ca[i];
    while (c.charAt(0)==' ') c = c.substring(1,c.length);
    if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
  }
  return null;
}

/* Clear contents of signin boxes */
function AstraSignin() {
	if(document.getElementById("pubSignIn_Profile_Login1_logintxtEmail")) {
		document.getElementById("pubSignIn_Profile_Login1_logintxtEmail").onfocus = function() {
			document.getElementById("pubSignIn_Profile_Login1_logintxtEmail").select();
		};
	}

	if(document.getElementById("pubSignIn_Profile_Login1_logintxtPassword")) {
		document.getElementById("pubSignIn_Profile_Login1_logintxtPassword").onfocus = function() {
			document.getElementById("pubSignIn_Profile_Login1_logintxtPassword").select();
		};
	}
}

/* Force linebreak on longish navigation items since FF has a meltdown otherwise */
function LongNavItems() {
	if(!document.getElementById("submenu")) {
		return false;
	}
	
	var subMenuCollection = document.getElementById("submenu").getElementsByTagName("a");
	var sizeSubMenu = subMenuCollection.length;
	var tempNavItem = "";
	var navItemPreHyphen = "";
	var navItemPostHyphen = "";
	
	for(var x = 0; x < sizeSubMenu; x++) {
		tempNavItem = subMenuCollection[x].firstChild.nodeValue;
		
		// Long nav item is detected...
		if(tempNavItem.length > 20 && tempNavItem.lastIndexOf("-") > 20) {
			navItemPreHyphen = tempNavItem.substring(0, tempNavItem.lastIndexOf("-") + 1);
			navItemPostHyphen = tempNavItem.substring(tempNavItem.lastIndexOf("-") + 1);
			
			// Clear element node and "re-create" with the patched up text.			
			subMenuCollection[x].removeChild(subMenuCollection[x].firstChild);
			subMenuCollection[x].appendChild(document.createTextNode(navItemPreHyphen));
			subMenuCollection[x].appendChild(document.createElement("br"));
			subMenuCollection[x].appendChild(document.createTextNode(navItemPostHyphen));
			
			// Clear contents for another go-around.
			navItemPreHyphen = "";
			navItemPostHyphen = "";
		}
	}
}

window.onload = function(e) {
  var cookie = readCookie("style");
  var title = cookie ? cookie : getPreferredStyleSheet();
  setActiveStyleSheet(title);
  
  // Custom function calls
  AstraSignin();
  LongNavItems();
}

window.onunload = function(e) {
  var title = getActiveStyleSheet();
  createCookie("style", title, 365);
}

var cookie = readCookie("style");
var title = cookie ? cookie : getPreferredStyleSheet();
setActiveStyleSheet(title);