function showToggledContent() {
	var hash = document.location.hash;
	if (hash.length > 0) {
		hash = hash.replace(/#/i, ''); // remove the # from the hash
		toggle(hash);
	}
}

function toggle_class(className) {

	// toggle visibility of elements by their class name
	var elements = getElementsByClass(className);
	
	var toggleLink = document.getElementById('toggle_' + className);
	
	for (i = 0; i < elements.length; i++) {
	
		element = elements[i];
		
		if (element.style.display == 'none') {
			// show
			element.style.display = '';
			if (toggleLink) {
				toggleLink.className += ' toggled';
			}
		} else {
			// hide
			element.style.display = 'none';
			if (toggleLink) {
				toggleLink.className = toggleLink.className.replace(/\b ?toggled\b/,'');
			}
		}
	}
	
}

function validateUsername(username_element) {
	
	if (!document.getElementById(username_element)) { return false; }
	
	var username_node = document.getElementById(username_element);
	var username = username_node.value;
	
	if (username.length < 2) {
		alert('Please provide a username between 2 and 40 characters long.');
		username_node.focus();
		return false;
	}
	
	if (username.length > 40) {
		alert('Please provide a username between 2 and 40 characters long.');
		username_node.focus();
		return false;
	}
	
	var regex = /^[A-Za-z0-9_\-\.]+$/
	
	if (!regex.test(username)) {
		alert('Please only use alphanumeric characters (A-Z and 0-9) in your username.');
		username_node.focus();
		return false;
	}
	
	return true;	

}

function setupURLJumperSelect() {
	// get all select elements with the class 'url_jump_select'
	var selects = getElementsByClass('url_jump_select', document, 'SELECT');
	// loop through, add event on change
	for (var i = 0; i < selects.length; i++) {
		selectElement = selects[i];
		// attach onclick function
		addEvent(selectElement, 'change', urlJumpSelect, false);
	}	
}

function urlJumpSelect(e) {
	// find the target
	var target = findTarget(e);
	var path = target.value;
	if (path.length > 0) {
		document.location.href = path;
	}
}

function setUpRadiosAndCheckboxes() {
	// get all select elements with the class 'url_jump_select'
	var inputs = document.getElementsByTagName('INPUT');
	// loop through, add class 'radio' if they are a radio or checkbox
	for (var i = 0; i < inputs.length; i++) {
		inputElement = inputs[i];
		if (inputElement.getAttribute('type') == 'checkbox' || inputElement.getAttribute('type') == 'radio') {
			// add class
			inputElement.className += ' radio';
		}
	}	
}

function toggleList(e) {
	
	// get a reference to the anchor and it's parentNode (the <li> element)
	if (window.event) {
		// IE does it differently... stores the event in a window.event object
		var thisA = window.event.srcElement;
		//alert(thisA);
		var thisLI = thisA.parentNode;
	} else {
		var thisA = this;
		var thisLI = this.parentNode;
	}
	// if this li has nested ul elements...
	if (thisLI.getElementsByTagName('ul').length > 0) {
		
		var toggleListTarget = thisLI.getElementsByTagName('ul')[0];
		//...toggle visibility of first ul
		if (toggleListTarget.style.display != 'none' ) {
			toggleListTarget.style.display = 'none';
			//thisA.style.color = '';
			thisA.style.backgroundImage = 'url(../images/arrowright.gif)';
			//closeListArrow();
		} else {
			toggleListTarget.style.display = '';
			//thisA.style.color = 'white';
			thisA.style.backgroundImage = 'url(../images/arrowdown.gif)';
			//expandListArrow();
		}
		// cancel bubble and href of this anchor
		cancelClick(e);
		// hack for Safari (stops browser following href link)
		thisA.onclick = function() { return false; }
	}
}

function setUpCollapsingList() {

	// find the toggle list
	var lists = getElementsByClass('collapsible_list', document, 'ul');
	
	for (var x = 0; x < lists.length; x++) {
		//list = document.getElementById('collapsingList');
		list = lists[x];
		// find all it's child UL elements
		var childLists = list.getElementsByTagName('ul');
		// hide them all
		for (var i = 0; i < childLists.length; i++) {
			var childList = childLists[i];
			childList.style.display = 'none';
		}
		
		// attach toggleList function to onclick of each anchor
		var childAnchors = list.getElementsByTagName('a');
		// hide them all
		for (var i = 0; i < childAnchors.length; i++) {
			var childAnchor = childAnchors[i];
			// attach toggleList function to onclick of each anchor
			addEvent(childAnchor, 'click', toggleList, false);
		}
	}
}

function slideSwap(e) {
	
	var element;
	
	// cross browser method of finding out who is calling this function
	// this is the IE way
	if (window.event && window.event.srcElement) {
		element = window.event.srcElement;
	}
	if (e && e.target) {
		element = e.target;
	}
	
	// make sure we get an anchor tag
	while (element != document.body && element.nodeName.toLowerCase() != 'a') {
		element = element.parentNode;
	}
	
	// get the value of the element
	//var src = element.src;
	// change the src of the main image
	//var mainImage = document.getElementById("imagePlaceholder");
	//mainImage.src = src;
	
	// get the id of the div to toggle (found in the rel attribute of the anchor)
	var toggleDiv = element.getAttribute("rel");
	//alert(toggleDiv);
	
	var toggleDivs = new Array('slide_1', 'slide_2', 'slide_3', 'slide_4', 'slide_5');
	for (var i = 0; i < toggleDivs.length; i++) {
		
		var tempToggleDiv = toggleDivs[i];
		if (document.getElementById(tempToggleDiv)) {
			//alert(element);
			if (tempToggleDiv == toggleDiv) {
				document.getElementById(tempToggleDiv).style.display = '';
			} else {
				document.getElementById(tempToggleDiv).style.display = 'none';
			}
		}
	}
	
	// turn off all borders first
	var image_anchors = document.getElementById("slide_selector").getElementsByTagName("a");
	for (var i = 0; i < image_anchors.length; i++) {
		var anchor = image_anchors[i];
		// unhighlight all other anchors
		anchor.className = anchor.className.replace(/\b ?selected\b/,'');
	}
	
	// highlight clicked anchor
	element.className += 'selected';
	
	// cancel default anchor link
	if (window.event) {
		window.event.returnValue = false;
	} else {
		e.preventDefault();
	}
}

function ini_slideSwap() {	
	if (document.getElementById) {
		if (document.getElementById("slide_selector")) {
			var anchors = document.getElementById("slide_selector").getElementsByTagName("a");
			for (var i = 0; i < anchors.length; i++) {
				var element = anchors[i];
				addEvent(element, 'click', slideSwap, false);
				element.onclick = cancelClick; // for the benefit of Safari
			}
		}
	}	
}

/*
addLoadEvent(load_ticker);
addLoadEvent(setupURLJumperSelect);
addLoadEvent(setUpRadiosAndCheckboxes);
addLoadEvent(setUpCollapsingList);
*/

addLoadEvent(showToggledContent);
addLoadEvent(ini_slideSwap);