// TOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOL MAN
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var ToolMan = {
	events : function() {
		if (!ToolMan._eventsFactory) throw "ToolMan Events module isn't loaded";
		return ToolMan._eventsFactory
	},

	css : function() {
		if (!ToolMan._cssFactory) throw "ToolMan CSS module isn't loaded";
		return ToolMan._cssFactory
	},

	coordinates : function() {
		if (!ToolMan._coordinatesFactory) throw "ToolMan Coordinates module isn't loaded";
		return ToolMan._coordinatesFactory
	},

	drag : function() {
		if (!ToolMan._dragFactory) throw "ToolMan Drag module isn't loaded";
		return ToolMan._dragFactory
	},

	dragsort : function() {
		if (!ToolMan._dragsortFactory) throw "ToolMan DragSort module isn't loaded";
		return ToolMan._dragsortFactory
	},

	helpers : function() {
		return ToolMan._helpers
	},

	cookies : function() {
		if (!ToolMan._cookieOven) throw "ToolMan Cookie module isn't loaded";
		return ToolMan._cookieOven
	},

	junkdrawer : function() {
		return ToolMan._junkdrawer
	}

}

ToolMan._helpers = {
	map : function(array, func) {
		for (var i = 0, n = array.length; i < n; i++) func(array[i])
	},

	nextItem : function(item, nodeName) {
		if (item == null) return
		var next = item.nextSibling
		while (next != null) {
			if (next.nodeName == nodeName) return next
			next = next.nextSibling
		}
		return null
	},

	previousItem : function(item, nodeName) {
		var previous = item.previousSibling
		while (previous != null) {
			if (previous.nodeName == nodeName) return previous
			previous = previous.previousSibling
		}
		return null
	},

	moveBefore : function(item1, item2) {
		var parent = item1.parentNode
		parent.removeChild(item1)
		parent.insertBefore(item1, item2)
	},

	moveAfter : function(item1, item2) {
		var parent = item1.parentNode
		parent.removeChild(item1)
		parent.insertBefore(item1, item2 ? item2.nextSibling : null)
	}
}

/** 
 * scripts without a proper home
 *
 * stuff here is subject to change unapologetically and without warning
 */
ToolMan._junkdrawer = {
	serializeList : function(list) {
		var items = list.getElementsByTagName("li")
		var array = new Array()
		for (var i = 0, n = items.length; i < n; i++) {
			var item = items[i]

			array.push(ToolMan.junkdrawer()._identifier(item))
		}
		return array.join('|')
	},

	inspectListOrder : function(id) {
		alert(ToolMan.junkdrawer().serializeList(document.getElementById(id)))
	},

	restoreListOrder : function(listID) {
		var list = document.getElementById(listID)
		if (list == null) return

		var cookie = ToolMan.cookies().get("list-" + listID)
		if (!cookie) return;

		var IDs = cookie.split('|')
		var items = ToolMan.junkdrawer()._itemsByID(list)

		for (var i = 0, n = IDs.length; i < n; i++) {
			var itemID = IDs[i]
			if (itemID in items) {
				var item = items[itemID]
				list.removeChild(item)
				list.insertBefore(item, null)
			}
		}
	},

	_identifier : function(item) {
		var trim = ToolMan.junkdrawer().trim
		var identifier

		identifier = trim(item.getAttribute("id"))
		if (identifier != null && identifier.length > 0) return identifier;
		
		identifier = trim(item.getAttribute("itemID"))
		if (identifier != null && identifier.length > 0) return identifier;
		
		// FIXME: strip out special chars or make this an MD5 hash or something
		return trim(item.innerHTML)
	},

	_itemsByID : function(list) {
		var array = new Array()
		var items = list.getElementsByTagName('li')
		for (var i = 0, n = items.length; i < n; i++) {
			var item = items[i]
			array[ToolMan.junkdrawer()._identifier(item)] = item
		}
		return array
	},

	trim : function(text) {
		if (text == null) return null
		return text.replace(/^(\s+)?(.*\S)(\s+)?$/, '$2')
	}
}
ToolMan._coordinatesFactory = {

	create : function(x, y) {
		// FIXME: Safari won't parse 'throw' and aborts trying to do anything with this file
		//if (isNaN(x) || isNaN(y)) throw "invalid x,y: " + x + "," + y
		return new _ToolManCoordinate(this, x, y)
	},

	origin : function() {
		return this.create(0, 0)
	},


	/*
	 * FIXME: Safari 1.2, returns (0,0) on absolutely positioned elements
	 */
	topLeftPosition : function(element) {
		var left = parseInt(ToolMan.css().readStyle(element, "left"))
		var left = isNaN(left) ? 0 : left
		var top = parseInt(ToolMan.css().readStyle(element, "top"))
		var top = isNaN(top) ? 0 : top

		return this.create(left, top)
	},

	bottomRightPosition : function(element) {
		return this.topLeftPosition(element).plus(this._size(element))
	},

	topLeftOffset : function(element) {
		var offset = this._offset(element) 

		var parent = element.offsetParent
		while (parent) {
			offset = offset.plus(this._offset(parent))
			parent = parent.offsetParent
		}
		return offset
	},

	bottomRightOffset : function(element) {
		return this.topLeftOffset(element).plus(
				this.create(element.offsetWidth, element.offsetHeight))
	},

	scrollOffset : function() {
		if (window.pageXOffset) {
			return this.create(window.pageXOffset, window.pageYOffset)
		} else if (document.documentElement) {
			return this.create(
					document.body.scrollLeft + document.documentElement.scrollLeft, 
					document.body.scrollTop + document.documentElement.scrollTop)
		} else if (document.body.scrollLeft >= 0) {
			return this.create(document.body.scrollLeft, document.body.scrollTop)
		} else {
			return this.create(0, 0)
		}
	},

	clientSize : function() {
		if (window.innerHeight >= 0) {
			return this.create(window.innerWidth, window.innerHeight)
		} else if (document.documentElement) {
			return this.create(document.documentElement.clientWidth,
					document.documentElement.clientHeight)
		} else if (document.body.clientHeight >= 0) {
			return this.create(document.body.clientWidth,
					document.body.clientHeight)
		} else {
			return this.create(0, 0)
		}
	},

	/**
	 * mouse coordinate relative to the window (technically the
	 * browser client area) i.e. the part showing your page
	 *
	 * NOTE: in Safari the coordinate is relative to the document
	 */
	mousePosition : function(event) {
		event = ToolMan.events().fix(event)
		return this.create(event.clientX, event.clientY)
	},

	/**
	 * mouse coordinate relative to the document
	 */
	mouseOffset : function(event) {
		event = ToolMan.events().fix(event)
		if (event.pageX >= 0 || event.pageX < 0) {
			return this.create(event.pageX, event.pageY)
		} else if (event.clientX >= 0 || event.clientX < 0) {
			return this.mousePosition(event).plus(this.scrollOffset())
		}
	},

	_size : function(element) {
	/* TODO: move to a Dimension class */
		return this.create(element.offsetWidth, element.offsetHeight)
	},

	_offset : function(element) {
		return this.create(element.offsetLeft, element.offsetTop)
	}
}

function _ToolManCoordinate(factory, x, y) {
	this.factory = factory
	this.x = isNaN(x) ? 0 : x
	this.y = isNaN(y) ? 0 : y
}

_ToolManCoordinate.prototype = {
	toString : function() {
		return "(" + this.x + "," + this.y + ")"
	},

	plus : function(that) {
		return this.factory.create(this.x + that.x, this.y + that.y)
	},

	minus : function(that) {
		return this.factory.create(this.x - that.x, this.y - that.y)
	},

	min : function(that) {
		return this.factory.create(
				Math.min(this.x , that.x), Math.min(this.y , that.y))
	},

	max : function(that) {
		return this.factory.create(
				Math.max(this.x , that.x), Math.max(this.y , that.y))
	},

	constrainTo : function (one, two) {
		var min = one.min(two)
		var max = one.max(two)

		return this.max(min).min(max)
	},

	distance : function (that) {
		return Math.sqrt(Math.pow(this.x - that.x, 2) + Math.pow(this.y - that.y, 2))
	},

	reposition : function(element) {
		element.style["top"] = this.y + "px"
		element.style["left"] = this.x + "px"
	}
}
ToolMan._cookieOven = {

	set : function(name, value, expirationInDays) {
		if (expirationInDays) {
			var date = new Date()
			date.setTime(date.getTime() + (expirationInDays * 24 * 60 * 60 * 1000))
			var expires = "; expires=" + date.toGMTString()
		} else {
			var expires = ""
		}
		document.cookie = name + "=" + value + expires + "; path=/"
	},

	get : function(name) {
		var namePattern = name + "="
		var cookies = document.cookie.split(';')
		for(var i = 0, n = cookies.length; i < n; i++) {
			var c = cookies[i]
			while (c.charAt(0) == ' ') c = c.substring(1, c.length)
			if (c.indexOf(namePattern) == 0)
				return c.substring(namePattern.length, c.length)
		}
		return null
	},

	eraseCookie : function(name) {
		createCookie(name, "", -1)
	}
}

ToolMan._eventsFactory = {
	fix : function(event) {
		if (!event) event = window.event

		if (event.target) {
			if (event.target.nodeType == 3) event.target = event.target.parentNode
		} else if (event.srcElement) {
			event.target = event.srcElement
		}

		return event
	},

	register : function(element, type, func) {
		if (element.addEventListener) {
			element.addEventListener(type, func, false)
		} else if (element.attachEvent) {
			if (!element._listeners) element._listeners = new Array()
			if (!element._listeners[type]) element._listeners[type] = new Array()
			var workaroundFunc = function() {
				func.apply(element, new Array())
			}
			element._listeners[type][func] = workaroundFunc
			element.attachEvent('on' + type, workaroundFunc)
		}
	},

	unregister : function(element, type, func) {
		if (element.removeEventListener) {
			element.removeEventListener(type, func, false)
		} else if (element.detachEvent) {
			if (element._listeners 
					&& element._listeners[type] 
					&& element._listeners[type][func]) {

				element.detachEvent('on' + type, 
						element._listeners[type][func])
			}
		}
	}
}
ToolMan._dragFactory = {
	createSimpleGroup : function(element, handle) {
		handle = handle ? handle : element
		var group = this.createGroup(element)
		group.setHandle(handle)
		group.transparentDrag()
		group.onTopWhileDragging()
		return group
	},

	createGroup : function(element) {
		var group = new _ToolManDragGroup(this, element)

		var position = ToolMan.css().readStyle(element, 'position')
		if (position == 'static') {
			element.style["position"] = 'relative'
		} else if (position == 'absolute') {
			/* for Safari 1.2 */
			ToolMan.coordinates().topLeftOffset(element).reposition(element)
		}

		// TODO: only if ToolMan.isDebugging()
		group.register('draginit', this._showDragEventStatus)
		group.register('dragmove', this._showDragEventStatus)
		group.register('dragend', this._showDragEventStatus)

		return group
	},

	_showDragEventStatus : function(dragEvent) {
	},

	constraints : function() {
		return this._constraintFactory
	},

	_createEvent : function(type, event, group) {
		return new _ToolManDragEvent(type, event, group)
	}
}

function _ToolManDragGroup(factory, element) {
	this.factory = factory
	this.element = element
	this._handle = null
	this._thresholdDistance = 0
	this._transforms = new Array()
	// TODO: refactor into a helper object, move into events.js
	this._listeners = new Array()
	this._listeners['draginit'] = new Array()
	this._listeners['dragstart'] = new Array()
	this._listeners['dragmove'] = new Array()
	this._listeners['dragend'] = new Array()
}

_ToolManDragGroup.prototype = {
	/*
	 * TODO:
	 *   - unregister(type, func)
	 *   - move custom event listener stuff into Event library
	 *   - keyboard nudging of "selected" group
	 */

	setHandle : function(handle) {
		var events = ToolMan.events()

		handle.toolManDragGroup = this
		events.register(handle, 'mousedown', this._dragInit)
		handle.onmousedown = function() { return false }

		if (this.element != handle)
			events.unregister(this.element, 'mousedown', this._dragInit)
	},

	register : function(type, func) {
		this._listeners[type].push(func)
	},

	addTransform : function(transformFunc) {
		this._transforms.push(transformFunc)
	},

	verticalOnly : function() {
		this.addTransform(this.factory.constraints().vertical())
	},

	horizontalOnly : function() {
		this.addTransform(this.factory.constraints().horizontal())
	},

	setThreshold : function(thresholdDistance) {
		this._thresholdDistance = thresholdDistance
	},

	transparentDrag : function(opacity) {
		var opacity = typeof(opacity) != "undefined" ? opacity : 1;
		var originalOpacity = ToolMan.css().readStyle(this.element, "opacity")

		this.register('dragstart', function(dragEvent) {
			var element = dragEvent.group.element
			element.style.opacity = opacity
			element.style.filter = 'alpha(opacity=' + (opacity * 100) + ')'
		})
		this.register('dragend', function(dragEvent) {
			var element = dragEvent.group.element
			element.style.opacity = originalOpacity
			element.style.filter = 'alpha(opacity=100)'
		})
	},

	onTopWhileDragging : function(zIndex) {
		var zIndex = typeof(zIndex) != "undefined" ? zIndex : 100000;
		var originalZIndex = ToolMan.css().readStyle(this.element, "z-index")

		this.register('dragstart', function(dragEvent) {
			dragEvent.group.element.style.zIndex = zIndex
		})
		this.register('dragend', function(dragEvent) {
			dragEvent.group.element.style.zIndex = originalZIndex
		})
	},

	_dragInit : function(event) {
		event = ToolMan.events().fix(event)
		var group = document.toolManDragGroup = this.toolManDragGroup
		var dragEvent = group.factory._createEvent('draginit', event, group)

		group._isThresholdExceeded = false
		group._initialMouseOffset = dragEvent.mouseOffset
		group._grabOffset = dragEvent.mouseOffset.minus(dragEvent.topLeftOffset)
		ToolMan.events().register(document, 'mousemove', group._drag)
		document.onmousemove = function() { return false }
		ToolMan.events().register(document, 'mouseup', group._dragEnd)

		group._notifyListeners(dragEvent)
	},

	_drag : function(event) {
		event = ToolMan.events().fix(event)
		var coordinates = ToolMan.coordinates()
		var group = this.toolManDragGroup
		if (!group) return
		var dragEvent = group.factory._createEvent('dragmove', event, group)

		var newTopLeftOffset = dragEvent.mouseOffset.minus(group._grabOffset)

		// TODO: replace with DragThreshold object
		if (!group._isThresholdExceeded) {
			var distance = 
					dragEvent.mouseOffset.distance(group._initialMouseOffset)
			if (distance < group._thresholdDistance) return
			group._isThresholdExceeded = true
			group._notifyListeners(
					group.factory._createEvent('dragstart', event, group))
		}

		for (i in group._transforms) {
			var transform = group._transforms[i]
			newTopLeftOffset = transform(newTopLeftOffset, dragEvent)
		}

		var dragDelta = newTopLeftOffset.minus(dragEvent.topLeftOffset)
		var newTopLeftPosition = dragEvent.topLeftPosition.plus(dragDelta)
		newTopLeftPosition.reposition(group.element)
		dragEvent.transformedMouseOffset = newTopLeftOffset.plus(group._grabOffset)

		group._notifyListeners(dragEvent)

		var errorDelta = newTopLeftOffset.minus(coordinates.topLeftOffset(group.element))
		if (errorDelta.x != 0 || errorDelta.y != 0) {
			coordinates.topLeftPosition(group.element).plus(errorDelta).reposition(group.element)
		}
	},

	_dragEnd : function(event) {
		event = ToolMan.events().fix(event)
		var group = this.toolManDragGroup
		var dragEvent = group.factory._createEvent('dragend', event, group)

		group._notifyListeners(dragEvent)

		this.toolManDragGroup = null
		ToolMan.events().unregister(document, 'mousemove', group._drag)
		document.onmousemove = null
		ToolMan.events().unregister(document, 'mouseup', group._dragEnd)
	},

	_notifyListeners : function(dragEvent) {
		var listeners = this._listeners[dragEvent.type]
		for (i in listeners) {
			listeners[i](dragEvent)
		}
	}
}


function _ToolManDragEvent(type, event, group) {
	this.type = type
	this.group = group
	this.mousePosition = ToolMan.coordinates().mousePosition(event)
	this.mouseOffset = ToolMan.coordinates().mouseOffset(event)
	this.transformedMouseOffset = this.mouseOffset
	this.topLeftPosition = ToolMan.coordinates().topLeftPosition(group.element)
	this.topLeftOffset = ToolMan.coordinates().topLeftOffset(group.element)
}

_ToolManDragEvent.prototype = {
	toString : function() {
		return "mouse: " + this.mousePosition + this.mouseOffset + "    " +
				"xmouse: " + this.transformedMouseOffset + "    " +
				"left,top: " + this.topLeftPosition + this.topLeftOffset
	}
}

ToolMan._dragFactory._constraintFactory = {
	vertical : function() {
		return function(coordinate, dragEvent) {
			var x = dragEvent.topLeftOffset.x
			return coordinate.x != x
					? coordinate.factory.create(x, coordinate.y) 
					: coordinate
		}
	},

	horizontal : function() {
		return function(coordinate, dragEvent) {
			var y = dragEvent.topLeftOffset.y
			return coordinate.y != y
					? coordinate.factory.create(coordinate.x, y) 
					: coordinate
		}
	}
}
ToolMan._cssFactory = {
	readStyle : function(element, property) {
		if (element.style[property]) {
			return element.style[property]
		} else if (element.currentStyle) {
			return element.currentStyle[property]
		} else if (document.defaultView && document.defaultView.getComputedStyle) {
			var style = document.defaultView.getComputedStyle(element, null)
			return style.getPropertyValue(property)
		} else {
			return null
		}
	}
}
window.onload = function() {
	var group
	var coordinates = ToolMan.coordinates()
	var drag = ToolMan.drag()
	if(document.getElementById("product_layer2"))
	{	
		var boxHandle = document.getElementById("product_layer2")
		group = drag.createSimpleGroup(boxHandle, document.getElementById("handle_tab"))
	}
	if(document.getElementById("chat_place"))
	{	
		var boxHandle = document.getElementById("chat_place");
		group = drag.createSimpleGroup(boxHandle, document.getElementById("chat_holder"))
	}	
}