var ua = navigator.userAgent;
var opera = /opera [56789]|opera\/[56789]/i.test(ua);
var ie = !opera && /MSIE/.test(ua);
var ie50 = ie && /MSIE 5\.[01234]/.test(ua);
var ie6 = ie && /MSIE [6789]/.test(ua);
var ieBox = ie && (document.compatMode == null || document.compatMode != "CSS1Compat");
var moz = !opera && /gecko/i.test(ua);
var nn6 = !opera && /netscape.*6\./i.test(ua);

ksMenuDefaultWidth = 100;
ksMenuDefaultBorderLeft = 1;
ksMenuDefaultBorderRight = 1;
ksMenuDefaultBorderTop = 1;
ksMenuDefaultBorderBottom = 1;
ksMenuDefaultPaddingLeft = 1;
ksMenuDefaultPaddingRight = 1;
ksMenuDefaultPaddingTop = 1;
ksMenuDefaultPaddingBottom = 1;
ksMenuDefaultShadowLeft = 0;
ksMenuDefaultShadowRight = ie && !ie50 && /win32/i.test(navigator.platform) ? 4 :0;
ksMenuDefaultShadowTop = 0;
ksMenuDefaultShadowBottom = ie && !ie50 && /win32/i.test(navigator.platform) ? 4 : 0;
ksMenuItemDefaultHeight = 18;
ksMenuItemDefaultText = "unbeschriftet";
ksMenuItemDefaultHref = "javascript:void(0)";
ksMenuSeparatorDefaultHeight	= 6;
ksMenuDefaultEmptyText		= "Leer";
ksMenuDefaultUseAutoPosition	= nn6 ? false : true;
ksMenuImagePath = "/shared/images/html/";

ksMenuUseHover = true;
ksMenuHideTime = 250;
ksMenuShowTime = 100;

var webFXMenuHandler = {
	idCounter		:	0,
	idPrefix		:	"ksm-object-",
	all				:	{},
	getId			:	function () { return this.idPrefix + this.idCounter++; },
	overMenuItem	:	function (oItem) {
		if (this.showTimeout != null)
			window.clearTimeout(this.showTimeout);
		if (this.hideTimeout != null)
			window.clearTimeout(this.hideTimeout);
		var jsItem = this.all[oItem.id];
		if (ksMenuShowTime <= 0)
			this._over(jsItem);
		else
			this.showTimeout = window.setTimeout("webFXMenuHandler._over(webFXMenuHandler.all['" + jsItem.id + "'])", ksMenuShowTime);
	},
	outMenuItem	:	function (oItem) {
		if (this.showTimeout != null)
			window.clearTimeout(this.showTimeout);
		if (this.hideTimeout != null)
			window.clearTimeout(this.hideTimeout);
		var jsItem = this.all[oItem.id];
		if (ksMenuHideTime <= 0)
			this._out(jsItem);
		else
			this.hideTimeout = window.setTimeout("webFXMenuHandler._out(webFXMenuHandler.all['" + jsItem.id + "'])", ksMenuHideTime);
	},
	blurMenu		:	function (oMenuItem) {
		window.setTimeout("webFXMenuHandler.all[\"" + oMenuItem.id + "\"].subMenu.hide();", ksMenuHideTime);
	},
	_over	:	function (jsItem) {
		if (jsItem.subMenu) {
			jsItem.parentMenu.hideAllSubs();
			jsItem.subMenu.show();
		}
		else
			jsItem.parentMenu.hideAllSubs();
	},
	_out	:	function (jsItem) {
		var root = jsItem;
		var m;
		if (root instanceof KSMButton)
			m = root.subMenu;
		else {
			m = jsItem.parentMenu;
			while (m.parentMenu != null && !(m.parentMenu instanceof KSMBar))
				m = m.parentMenu;
		}
		if (m != null)
			m.hide();
	},
	hideMenu	:	function (menu) {
		if (this.showTimeout != null)
			window.clearTimeout(this.showTimeout);
		if (this.hideTimeout != null)
			window.clearTimeout(this.hideTimeout);

		this.hideTimeout = window.setTimeout("webFXMenuHandler.all['" + menu.id + "'].hide()", ksMenuHideTime);
	},
	showMenu	:	function (menu, src, dir) {
		if (this.showTimeout != null)
			window.clearTimeout(this.showTimeout);
		if (this.hideTimeout != null)
			window.clearTimeout(this.hideTimeout);
		if (arguments.length < 3)
			dir = "vertical";

		menu.show(src, dir);
	}
};

function KSM() {
	this._menuItems	= [];
	this._subMenus	= [];
	this.id			= webFXMenuHandler.getId();
	this.top		= 0;
	this.left		= 0;
	this.shown		= false;
	this.parentMenu	= null;
	webFXMenuHandler.all[this.id] = this;
}

KSM.prototype.width			= ksMenuDefaultWidth;
KSM.prototype.emptyText		= ksMenuDefaultEmptyText;
KSM.prototype.useAutoPosition	= ksMenuDefaultUseAutoPosition;

KSM.prototype.borderLeft		= ksMenuDefaultBorderLeft;
KSM.prototype.borderRight		= ksMenuDefaultBorderRight;
KSM.prototype.borderTop		= ksMenuDefaultBorderTop;
KSM.prototype.borderBottom	= ksMenuDefaultBorderBottom;

KSM.prototype.paddingLeft		= ksMenuDefaultPaddingLeft;
KSM.prototype.paddingRight	= ksMenuDefaultPaddingRight;
KSM.prototype.paddingTop		= ksMenuDefaultPaddingTop;
KSM.prototype.paddingBottom	= ksMenuDefaultPaddingBottom;

KSM.prototype.shadowLeft		= ksMenuDefaultShadowLeft;
KSM.prototype.shadowRight		= ksMenuDefaultShadowRight;
KSM.prototype.shadowTop		= ksMenuDefaultShadowTop;
KSM.prototype.shadowBottom	= ksMenuDefaultShadowBottom;

KSM.prototype.add = function (menuItem) {
	this._menuItems[this._menuItems.length] = menuItem;
	if (menuItem.subMenu) {
		this._subMenus[this._subMenus.length] = menuItem.subMenu;
		menuItem.subMenu.parentMenu = this;
	}

	menuItem.parentMenu = this;
};

KSM.prototype.show = function (relObj, sDir) {
	if (this.useAutoPosition)
		this.position(relObj, sDir);

	var divElement = document.getElementById(this.id);
	divElement.style.left = opera ? this.left : this.left + "px";
	divElement.style.top = opera ? this.top : this.top + "px";
	divElement.style.visibility = "visible";
	this.shown = true;
	if (this.parentMenu)
		this.parentMenu.show();
};

KSM.prototype.hide = function () {
	this.hideAllSubs();
	var divElement = document.getElementById(this.id);
	divElement.style.visibility = "hidden";
	this.shown = false;
};

KSM.prototype.hideAllSubs = function () {
	for (var i = 0; i < this._subMenus.length; i++) {
		if (this._subMenus[i].shown)
			this._subMenus[i].hide();
	}
};
KSM.prototype.toString = function () {
	var top = this.top + this.borderTop + this.paddingTop;
	var str = "<div id='" + this.id + "' class='ksm' style='" +
	"width:" + (!ieBox  ?
		this.width - this.borderLeft - this.paddingLeft - this.borderRight - this.paddingRight  :
		this.width) + "px;" +
	(this.useAutoPosition ?
		"left:" + this.left + "px;" + "top:" + this.top + "px;" :
		"") +
	(ie50 ? "filter:none;" : "") +
	"'>";

	if (this._menuItems.length == 0) {
		str +=	"<span class='ksm-empty'>" + this.emptyText + "</span>";
	}
	else {
		for (var i = 0; i < this._menuItems.length; i++) {
			var mi = this._menuItems[i];
			str += mi;
			if (!this.useAutoPosition) {
				if (mi.subMenu && !mi.subMenu.useAutoPosition)
					mi.subMenu.top = top - mi.subMenu.borderTop - mi.subMenu.paddingTop;
				top += mi.height;
			}
		}

	}

	str += "</div>";

	for (var i = 0; i < this._subMenus.length; i++) {
		this._subMenus[i].left = this.left + this.width - this._subMenus[i].borderLeft;
		str += this._subMenus[i];
	}

	return str;
};
function KSMItem(sText, sHref, sToolTip, oSubMenu) {
	this.text = sText || ksMenuItemDefaultText;
	this.href = (sHref == null || sHref == "") ? ksMenuItemDefaultHref : sHref;
	this.subMenu = oSubMenu;
	if (oSubMenu)
		oSubMenu.parentMenuItem = this;
	this.toolTip = sToolTip;
	this.id = webFXMenuHandler.getId();
	webFXMenuHandler.all[this.id] = this;
};
KSMItem.prototype.height = ksMenuItemDefaultHeight;
KSMItem.prototype.toString = function () {
	return	"<a" +
			" id='" + this.id + "'" +
			" href=\"" + this.href + "\"" +
			(this.target ? " target=\"" + this.target + "\"" : "") +
			(this.toolTip ? " title=\"" + this.toolTip + "\"" : "") +
			" onmouseover='webFXMenuHandler.overMenuItem(this)'" +
			(ksMenuUseHover ? " onmouseout='webFXMenuHandler.outMenuItem(this)'" : "") +
			(this.subMenu ? " unselectable='on' tabindex='-1'" : "") +
			">" +
			(this.subMenu ? "<img class='arrow' src=\"" + ksMenuImagePath + "arrow.right.png\">" : "") +
			this.text +
			"</a>";
};


function KSMSeparator() {
	this.id = webFXMenuHandler.getId();
	webFXMenuHandler.all[this.id] = this;
};
KSMSeparator.prototype.height = ksMenuSeparatorDefaultHeight;
KSMSeparator.prototype.toString = function () {
	return	"<div" +
			" id='" + this.id + "'" +
			(ksMenuUseHover ?
			" onmouseover='webFXMenuHandler.overMenuItem(this)'" +
			" onmouseout='webFXMenuHandler.outMenuItem(this)'"
			:
			"") +
			"></div>"
};

function KSMBar() {
	this._parentConstructor = KSM;
	this._parentConstructor();
}
KSMBar.prototype = new KSM;
KSMBar.prototype.toString = function () {
	var str = "<div id='" + this.id + "' class='ksm-bar' style='margin-left:1'>";
	for (var i = 0; i < this._menuItems.length; i++)
		str += this._menuItems[i];

	str += "</div>";

	for (var i = 0; i < this._subMenus.length; i++)
		str += this._subMenus[i];

	return str;
};

function KSMButton(sText, sHref, sToolTip, oSubMenu) {
	this._parentConstructor = KSMItem;
	this._parentConstructor(sText, sHref, sToolTip, oSubMenu);
}
KSMButton.prototype = new KSMItem;
KSMButton.prototype.toString = function () {
	return	"<a" +
			" style='position:relative; left:-1'" +
			" id='" + this.id + "'" +
			" href=\"" + this.href + "\"" +
			(this.target ? " target=\"" + this.target + "\"" : "") +
			(this.toolTip ? " title=\"" + this.toolTip + "\"" : "") +
			(ksMenuUseHover ?
				(" onmouseover='webFXMenuHandler.overMenuItem(this)'" +
				" onmouseout='webFXMenuHandler.outMenuItem(this)'") :
				(
					" onfocus='webFXMenuHandler.overMenuItem(this)'" +
					(this.subMenu ?
						" onblur='webFXMenuHandler.blurMenu(this)'" :
						""
					)
				)) +
			">" +
			this.text +
			(this.subMenu ? " <!--img class='arrow' src=\"" + ksMenuImagePath + "arrow.down.png\" align='absmiddle'-->" : "") +
			"</a>";
};

function getInnerLeft(el) {
	if (el == null) return 0;
	if (ieBox && el == document.body || !ieBox && el == document.documentElement) return 0;
	return getLeft(el) + getBorderLeft(el);
}

function getLeft(el) {
	if (el == null) return 0;
	return el.offsetLeft + getInnerLeft(el.offsetParent);
}

function getInnerTop(el) {
	if (el == null) return 0;
	if (ieBox && el == document.body || !ieBox && el == document.documentElement) return 0;
	return getTop(el) + getBorderTop(el);
}

function getTop(el) {
	if (el == null) return 0;
	return el.offsetTop + getInnerTop(el.offsetParent);
}

function getBorderLeft(el) {
	return ie ?
		el.clientLeft :
		parseInt(window.getComputedStyle(el, null).getPropertyValue("border-left-width"));
}

function getBorderTop(el) {
	return ie ?
		el.clientTop :
		parseInt(window.getComputedStyle(el, null).getPropertyValue("border-top-width"));
}

function opera_getLeft(el) {
	if (el == null) return 0;
	return el.offsetLeft + opera_getLeft(el.offsetParent);
}

function opera_getTop(el) {
	if (el == null) return 0;
	return el.offsetTop + opera_getTop(el.offsetParent);
}

function getOuterRect(el) {
	return {
		left:	(opera ? (opera_getLeft(el) - 14) : getLeft(el)),
		top:	(opera ? (opera_getTop(el) - 14) : getTop(el)),
		width:	el.offsetWidth,
		height:	el.offsetHeight
	};
}
function getDocumentRect(el) {
	return {
		left:	0,
		top:	0,
		width:	(ie ?
					(ieBox ? document.body.clientWidth : document.documentElement.clientWidth) :
					window.innerWidth
				),
		height:	(ie ?
					(ieBox ? document.body.clientHeight : document.documentElement.clientHeight) :
					window.innerHeight
				)
	};
}

function getScrollPos(el) {
	return {
		left:	(ie ?
					(ieBox ? document.body.scrollLeft : document.documentElement.scrollLeft) :
					window.pageXOffset
				),
		top:	(ie ?
					(ieBox ? document.body.scrollTop : document.documentElement.scrollTop) :
					window.pageYOffset
				)
	};
}

KSM.prototype.position = function (relEl, sDir) {
	var dir = sDir;
	var piRect;
	if (!relEl) {
		var pi = this.parentMenuItem;
		if (!this.parentMenuItem)
			return;

		relEl = document.getElementById(pi.id);
		if (dir == null)
			dir = pi instanceof KSMButton ? "vertical" : "horizontal";

		piRect = getOuterRect(relEl);
	}
	else if (relEl.left != null && relEl.top != null && relEl.width != null && relEl.height != null) {
		piRect = relEl;
	}
	else
		piRect = getOuterRect(relEl);

	var menuEl = document.getElementById(this.id);
	var menuRect = getOuterRect(menuEl);
	var docRect = getDocumentRect();
	var scrollPos = getScrollPos();
	var pMenu = this.parentMenu;

	if (dir == "vertical") {
		if (piRect.left + menuRect.width - scrollPos.left <= docRect.width)
			this.left = piRect.left;
		else if (docRect.width >= menuRect.width)
			this.left = docRect.width + scrollPos.left - menuRect.width;
		else
			this.left = scrollPos.left;

		if (piRect.top + piRect.height + menuRect.height <= docRect.height + scrollPos.top)
			this.top = piRect.top + piRect.height;
		else if (piRect.top - menuRect.height >= scrollPos.top)
			this.top = piRect.top - menuRect.height;
		else if (docRect.height >= menuRect.height)
			this.top = docRect.height + scrollPos.top - menuRect.height;
		else
			this.top = scrollPos.top;
	}
	else {
		if (piRect.top + menuRect.height - this.borderTop - this.paddingTop <= docRect.height + scrollPos.top)
			this.top = piRect.top - this.borderTop - this.paddingTop;
		else if (piRect.top + piRect.height - menuRect.height + this.borderTop + this.paddingTop >= 0)
			this.top = piRect.top + piRect.height - menuRect.height + this.borderBottom + this.paddingBottom + this.shadowBottom;
		else if (docRect.height >= menuRect.height)
			this.top = docRect.height + scrollPos.top - menuRect.height;
		else
			this.top = scrollPos.top;

		var pMenuPaddingLeft = pMenu ? pMenu.paddingLeft : 0;
		var pMenuBorderLeft = pMenu ? pMenu.borderLeft : 0;
		var pMenuPaddingRight = pMenu ? pMenu.paddingRight : 0;
		var pMenuBorderRight = pMenu ? pMenu.borderRight : 0;

		if (piRect.left + piRect.width + menuRect.width + pMenuPaddingRight +
			pMenuBorderRight - this.borderLeft + this.shadowRight <= docRect.width + scrollPos.left)
			this.left = piRect.left + piRect.width + pMenuPaddingRight + pMenuBorderRight - this.borderLeft;
		else if (piRect.left - menuRect.width - pMenuPaddingLeft - pMenuBorderLeft + this.borderRight + this.shadowRight >= 0)
			this.left = piRect.left - menuRect.width - pMenuPaddingLeft - pMenuBorderLeft + this.borderRight + this.shadowRight;
		else if (docRect.width >= menuRect.width)
			this.left = docRect.width  + scrollPos.left - menuRect.width;
		else
			this.left = scrollPos.left;
	}
};