/*
	PureDOM explorer 3.0
	written by Christian Heilmann (http://icant.co.uk)
	Please refer to the pde homepage for updates: http://www.onlinetools.org/tools/puredom/
	Free for non-commercial use. Changes welcome, but no distribution without 
	the consent of the author.
*/
pde={
	// CSS classes
	pdeClass:'pde',
	hideClass:'hide',
	showClass:'show',
	parentClass:'parent',
	currentClass:'current',
	// images added to the parent links
	openImage:'images/pde/minus.gif',
	closedImage:'images/pde/plus.gif',
	openMessage:'close section',
	closedMessage:'open section',
	// boolean to make the parent link collapse the section or not 
	linkParent:false,
	init:function(){
		pde.createClone();
		if(!document.getElementById || !document.createTextNode){return;}
		var uls=document.getElementsByTagName('ul');
		for(var i=0;i<uls.length;i++){
		var inneruls,parentLI;
			if(!pde.cssjs('check',uls[i],pde.pdeClass)){continue;}
			var inneruls=uls[i].getElementsByTagName('ul');
			for(var j=0;j<inneruls.length;j++){
				parentLI=inneruls[j].parentNode;
				if(parentLI.getElementsByTagName('strong')[0]){
					pde.cssjs('add',parentLI,pde.currentClass);
					continue;
				}
				pde.cssjs('add',parentLI,pde.parentClass);
				parentLI.insertBefore(pde.clone.cloneNode(true),parentLI.firstChild);
				pde.cssjs('add',inneruls[j],pde.hideClass);
				pde.addEvent(parentLI.getElementsByTagName('a')[0],'click',pde.showhide,false);