// JavaScript Document

function hideContent(el) {
	if (typeof(el) == 'undefined')
		return false;
	
	el = el.firstChild.nextSibling;
	
	while (el != null) {
		if (el.style)
			el.style.display = 'none';
		el = el.nextSibling;
	}
	
	return true;
}

function unhideContent(el) {
	if (typeof(el) == 'undefined')
		return false;
	
	el = el.firstChild.nextSibling;
	
	while (el != null) {
		if (el.style)
			el.style.display = '';
		el = el.nextSibling;
	}
	
	return true;
}

function hideAllContent(par, tagName, addURLs) {
	if (typeof(par) == 'undefined' || typeof(tagName) != 'string')
		return false;
	
	var tag = tagName.toLowerCase();
	var child = par.firstChild;
	
	if (addURLs === true) {
		while (child != null) {
			if (typeof(child.tagName) == 'string' && child.tagName.toLowerCase() == tag && hideContent(child))
				child.firstChild.innerHTML = '<a class="NoLink" href="#" onclick="hideOldShowNewContent(this.parentNode.parentNode); return false;">' + child.firstChild.innerHTML + '<a/>';
			
			child = child.nextSibling;
		}
	}
	else {
		while (child != null) {
			if (typeof(child.tagName) == 'string' && child.tagName.toLowerCase() == tag)
				hideContent(child);
			
			child = child.nextSibling;
		}
	}
	
	return true;
}

function hideOldShowNewContent(el) {
	if (typeof(el) == 'undefined')
		return false;
	
	if (typeof(el.parentNode.previousShownContent) != 'undefined' && el.parentNode.previousShownContent != null)
		hideContent(el.parentNode.previousShownContent);
	
	if (el.parentNode.previousShownContent != el) {
		el.parentNode.previousShownContent = el;
		unhideContent(el);
	}
	else {
		el.parentNode.previousShownContent = null;
		hideContent(el);
	}
	
	return true;
}