function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      oldonload();
      func();
    }
  }
}
function id(theId){
	return document.getElementById(theId);
}
function serialize(a){
	var s=[];
	
	if (a.constructor == Array){
		for(var i=0; i<a.length; i++)
			s.push(a[i].name + "=" + encodeURIComponent(a[i].value));
	}else{
		for(var j in a)
			s.push(j + "=" + encodeURIComponent(a[j]));
	}
	return s.join("&");
}
var toggling = {
	toggleDisplay : function(elem){
		elem.style.display = (elem.style.display == "none") ? "" : "none";
	},
	init: function(){
		var links = document.getElementsByTagName("a");
		for (i=0; i<links.length; i++){
			if (links[i].className == "toggle"){
				links[i].theRel = links[i].getAttribute("rel");
				links[i].onclick = function(){
					var theSpan = document.getElementById(this.theRel);
					toggling.toggleDisplay(theSpan);
					return false;
				}
				var theSpan = document.getElementById(links[i].theRel);
				theSpan.style.display = "none";
			}
		}
	}
}
addLoadEvent(toggling.init);