/*
This code is based on a code example from the article "Javascript navigation - cleaner, not meaner" by Christian Heilmann
URL: http://www.evolt.org/article/Javascript_navigation_cleaner_not_meaner/17/60273/index.html
*/

// vandersluis - hides stuff in javascript instead of css
if (document.getElementById) { 
	// include all feature tests needed for your DOM script
   	createStyleRule(".hide", "display:none;");
	// keith - DOM Scripting - addLoadEvent
		addLoadEvent(myUnobtrusiveBehavior);
		addLoadEvent(toggleOnload);
}


// bonrouge
// dd content hidden at first, dd content appears in the document flow, below the list 
function toggleNext(el,tname,first) {
	var selcn="selected";
	var parent=el.parentNode;
	var tags=parent.getElementsByTagName(tname);
	var next=el.nextSibling;
	var last=parent.lastChild;
	while(last.nodeType != 1) last = last.previousSibling;
	while(next.nodeType != 1) next = next.nextSibling;
	next.style.display="none";
	if (first!=1){
		for (i=0; i<tags.length; i++) {
			var tohide=tags[i].nextSibling;
			while(tohide.nodeType != 1) tohide = tohide.nextSibling;
			if (tohide!=next){tohide.style.display="none";}
			tags[i].className=tags[i].className.replace(new RegExp(selcn+"\\b"), "");
			if (tags[i]==el){
				var rEx = new RegExp("(^|\\s)" + selcn + "(\\s|$)");
				if (rEx.test(tags[i].className)==false) {tags[i].className+=" "+selcn;}
			}
		}	
		var clone=next.cloneNode(true);
		clone.style.display="block";
		parent.removeChild(last);
		parent.appendChild(clone);
	}
	else {
		var firstone=tags[0].nextSibling;
		while(firstone.nodeType != 1) firstone = firstone.nextSibling;
		var clone=firstone.cloneNode(true);
		// change to block to always show 1st dd content - to show 1st one to begin 
		clone.style.display="block";
		if (last.innerHTML!=clone.innerHTML){parent.appendChild(clone);}
		var rEx = new RegExp("(^|\\s)" + selcn + "(\\s|$)");
		// add +selcn to end, before ; to always highlight 1st dt content - to show 1st one to begin
		if (rEx.test(tags[0].className)==false) {tags[0].className+=" "+selcn;}
	}
}

function toggleNextByIdAndTag(el,tname) {
	var ccn="clicker";
	clickers=document.getElementById(el).getElementsByTagName(tname);
	for (i=0; i<clickers.length; i++) {
		
		// my bg image statement
		clickers[i].className = "togPos";

		clickers[i].className+=" "+ccn;
		clickers[i].onclick=function() {
			toggleNext(this,tname)
			}
		toggleNext(clickers[i],tname,1);
	}
}
// end togglebynext



function toggleOnload() {
	toggleNextByIdAndTag("dlist","dt");
	
	}



// vandersluis - prevents display:none flicker
function myUnobtrusiveBehavior() {

	setElementStyleByClassName("hide", "display", "none"); // fallback for IE5/Mac

	document.getElementsByTagName("p").onclick = function() {
		setElementStyleByClassName("hide", "display", "none");
		return false;
		};
}