function registerPloneFunction(func){
    // registers a function to fire onload. 
	// Turned out we kept doing this all the time
	// Use this for initilaizing any javascript that should fire once the page has been loaded. 
	// 
    if (window.addEventListener) window.addEventListener("load",func,false);
    else if (window.attachEvent) window.attachEvent("onload",func);   
  }

function getContentArea(){
	// to end all doubt on where the content sits. It also felt a bit silly doing this over and over in every
	// function, even if it is a tiny operation. Just guarding against someone changing the names again, in the name
	// of semantics or something.... ;)
	node =  document.getElementById('region-content')
	if (! node){
		node = document.getElementById('content')
		}
	return node
	}

function wrapNode(node, wrappertype, wrapperclass){
    // utility function to wrap a node "node" in an arbitrary element of type "wrappertype" , with a class of "wrapperclass"
    wrapper = document.createElement(wrappertype)
    wrapper.className = wrapperclass;
    innerNode = node.parentNode.replaceChild(wrapper,node);
    wrapper.appendChild(innerNode)
}
  









function setActiveStyleSheet(title, reset) {
  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;
    }
  }
  if (reset == 1) {
  createCookie("wstyle", title, 365);
  }
}

function setStyle() {
var style = readCookie("wstyle");
if (style != null) {
setActiveStyleSheet(style, 0);
}
}

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+"="+escape(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 unescape(c.substring(nameEQ.length,c.length));
  }
  return null;
}
registerPloneFunction(setStyle);