var AccordionMenu =(function()

{

	var YUD = YAHOO.util.Dom;

	var YUE = YAHOO.util.Event;

	var oMenuSetting = {};

	var oMenuCache = {};

	var dLastHoverTitle ;

	YUD.addClass(document.documentElement,'accordion-menu-js');

	

	function getDT(e)

	{

		var dEl = YUE.getTarget(e);

			

		if(	(e.tagName + '').toUpperCase()=='DD' )

		{	

			var dt = e.previousSibling ;

			while(dt)

			{

				if(dt.tagName &&  dt.tagName.toUpperCase() == 'DT'){break;};

				dt = dt.previousSibling

			};

			

			if(!dt || dt.tagName.toUpperCase() != 'DT'){return;}

			else{return (dt.tagName==='DT')?dt:null};

		}

		else if(e.clientX)

		{

			var found = false;

			while( dEl.parentNode)

			{

				if(YUD.hasClass(dEl,'toggle')){ found  = true ; break;};

				dEl = dEl.parentNode;

			};

			if(!found){return null}

			else{return (dEl.tagName==='DT')?dEl:null };	

		};		

	};

	

	

	

	function getDD(dt)

	{

		if(!dt){return null;};

		var dd = dt.nextSibling ;

	

		while(dd)

		{	

			if(dd.tagName && dd.tagName.toUpperCase() == 'DD'){break;};

			dd = dd.nextSibling;

			

		};

		if(!dd || dd.tagName.toUpperCase() != 'DD'){return;}

		else{return dd};

	};

	

	function expand(dl,dt,dd)

	{

		dl.hasAnimation +=1;

		YUD.addClass(dd,'content-before-expand');		

		var oAttr = {height:{from:0,to:dd.offsetHeight }};

		

		YUD.removeClass(dd,'content-before-expand');

		

		var onComplete = function()

		{	

			oAnim.onComplete.unsubscribe(onComplete);

			oAnim.stop();

			YUD.removeClass(dd,'content-anim');

			YUD.addClass(dd,'content-expand');

			onComplete = null;	

			dl.hasAnimation -=1;

			var dt = getDT(dd);	

			YUD.addClass(dt,'toggle-expand');

			if( oMenuCache[ dl.id ] &&  oMenuCache[ dl.id ].onOpen && dd.style.height!='' )

			{	

				oMenuCache[ dl.id ].onOpen(	 {dl:dl,dt:dt,dd:dd} );								

			};	

			dd.style.height = '';

		

		};

		

		var onTween = function()

		{

			if(dd.style.height)

			{	

				YUD.addClass(dd,'content-anim');				

				oAnim.onTween.unsubscribe(onTween);

				onTween = null;

				dd.oAnim = null;

			};

			

		};

		

		if(dd.oAnim)

		{

			dd.oAnim.stop();

			dd.oAnim = null;

			dl.hasAnimation -=1;	

		};

		var oEaseType = YAHOO.util.Easing.easeOut;

		var seconds = 0.5;

		if(oMenuCache[ dl.id ] )

		{

			oEaseType = oMenuCache[ dl.id ]['easeOut']?oEaseType:YAHOO.util.Easing.easeIn;

			seconds =  oMenuCache[ dl.id ]['seconds'];

			

			if( !oMenuCache[ dl.id ]['animation'] )

			{

				var oAnim = {onComplete:{unsubscribe:function(){}},stop:function(){}};

				onComplete();

				return;

			};

		};

		

		

		var oAnim = new YAHOO.util.Anim(dd,oAttr,seconds ,oEaseType);

		oAnim.onComplete.subscribe(onComplete);	

		oAnim.onTween.subscribe(onTween);

		oAnim.animate();

		dd.oAnim = oAnim ;

	

	};

	

	function collapse(dl,dt,dd)

	{

		dl.hasAnimation +=1;

		YUD.addClass(dd,'content-anim');

		var oAttr = {height:{from:dd.offsetHeight,to:0}};

		

		

		var onComplete = function()

		{

			oAnim.onComplete.unsubscribe(onComplete);

			YUD.removeClass(dd,'content-anim');

			YUD.removeClass(dd,'content-expand');

			dd.style.height = '';

			dd.oAnim = null;

			onComplete = null;	

			dl.hasAnimation -=1;	

			var dt = getDT(dd);	

			YUD.removeClass(dt,'toggle-expand');	

			if( oMenuCache[ dl.id ] &&  oMenuCache[ dl.id ].onOpen )

			{				

				oMenuCache[ dl.id ].onClose(	 {dl:dl,dt:dt,dd:dd} );

			};			

			

		};

		

		if(dd.oAnim)

		{

			dd.oAnim.stop();

			dd.oAnim = null;

			dl.hasAnimation -=1;	

		};

		

		var oEaseType = YAHOO.util.Easing.easeOut;

		var seconds = 0.5;

		if(oMenuCache[ dl.id ] )

		{

			oEaseType = oMenuCache[ dl.id ]['easeOut']?oEaseType:YAHOO.util.Easing.easeIn;

			seconds =  oMenuCache[ dl.id ]['seconds'];

			if( !oMenuCache[ dl.id ]['animation'] )

			{

				var oAnim = {onComplete:{unsubscribe:function(){}},stop:function(){}};

				onComplete();

				return;

			};	

		};

		

		var oAnim = new YAHOO.util.Anim(dd,oAttr,seconds ,oEaseType);	

		oAnim.onComplete.subscribe(onComplete);	

		oAnim.animate();

		dd.oAnim = oAnim ;

	};

	

	function collapseAll(dl,dt,dd)

	{

		var aOtherDD = YUD.getElementsByClassName('content-expand','dd',dl);

		for(var i=0;i<aOtherDD.length;i++)

		{

			var otherDD = aOtherDD[i] ;

			if( otherDD !=dd )

			{

				collapse(dl,null,otherDD);

			};				

		};

	}

	

	

	var onMenuMouseover = function(e)

	{

		var dMenuTitle = getDT(e);

		if(!dMenuTitle){return;};

		if(dLastHoverTitle)

		{

			YUD.removeClass(dLastHoverTitle,'toggle-hover');

		};		

		YUD.addClass(dMenuTitle,'toggle-hover');

		dLastHoverTitle = dMenuTitle ;

		YUE.preventDefault(e);

		return false;		

	};

	

	var onMenuMouseout = function(e)

	{

		var dMenuTitle = getDT(e);

		if(!dMenuTitle){return;};

		if(dLastHoverTitle && dLastHoverTitle!=dMenuTitle)

		{

			YUD.removeClass(dLastHoverTitle,'toggle-hover');

			YUD.removeClass(dLastHoverTitle,'toggle-down');

		};	

		YUD.removeClass(dMenuTitle,'toggle-down');	

		YUD.removeClass(dMenuTitle,'toggle-hover');

		dLastHoverTitle = null ;

		YUE.preventDefault(e);

		return false;		

	};

	

	var onMenuMousedown = function(e)

	{

		var dMenuTitle = getDT(e);

		if(!dMenuTitle){return;};	

		YUD.addClass(dMenuTitle,'toggle-down');

		YUE.preventDefault(e);

		return false;	

	};

	

	var onMenuClick = function(e)

	{

		var dt = getDT(e);

		if(!dt){return;};

		var dd = getDD(dt);

		

	

		

		if(!dd){return;};

		var dl = dt.parentNode;

		

		if(dl.hasAnimation==null)

		{

			dl.hasAnimation = 0;

		}	

		if(dl.hasAnimation > 0 ){return;};

		YUD.removeClass(dt,'toggle-down');

		

		if(YUD.hasClass(dd,'content-expand'))

		{	

			collapse(dl,dt,dd);

		}

		else

		{			

			if( oMenuCache[ dl.id ] &&  oMenuCache[ dl.id ].dependent == false ){}

			else{collapseAll(dl,dt,dd);}

			expand(dl,dt,dd);

		};		

		YUE.preventDefault(e);

		return false;

	};

	

	

	YUE.on( document,'mouseover',onMenuMouseover);

	YUE.on( document,'mouseout',onMenuMouseout);

	YUE.on( document,'mousedown',onMenuMousedown);

	YUE.on( document,'click',onMenuClick);

	

  var oApi = {

  

	openDtById : function(sId)

	{

		var dt = document.getElementById(sId);

		if(!dt){return;};

		if(!YUD.hasClass(dt,'toggle')){return;};

		var dl = dt.parentNode;

		var dd = getDD(dt);

		if(dl.hasAnimation==null){dl.hasAnimation = 0;};

		

		if(dl.hasAnimation > 0 ){return;};

		if(YUD.hasClass(dd,'content-expand')){return;};

		if( oMenuCache[ dl.id ] &&  oMenuCache[ dl.id ].dependent == false ){}

		else{collapseAll(dl,dt,dd);}

		expand(dl,dt,dd);

	},

	

	closeDtById : function(sId)

	{

		var dt = document.getElementById(sId);

		if(!dt){return;};

		if(!YUD.hasClass(dt,'toggle')){return;};

		var dl = dt.parentNode;

		var dd = getDD(dt);

		if(dl.hasAnimation==null){dl.hasAnimation = 0;};

		if(dl.hasAnimation > 0 ){return;};

		if(!YUD.hasClass(dd,'content-expand')){return;};

		collapse(dl,dt,dd);

	},

	

	

	setting : function(id,oOptions)

	{	

		if( !oOptions ){return;};

	

		if( typeof(id)!='string' ){return;};

	

		var setMunu = function(dl)

		{	

			dl = dl || this;

			dl.hasAnimation = 0;

			oMenuCache[ dl.id ] = 

			{

				element:dl,

				dependent:true,

				onOpen:function(){},

				onClose:function(){},

				seconds:0.5,

				easeOut:true,

				openedIds:[],

				animation:true

			};

			oMenu =  oMenuCache[ dl.id ] ;

			

			if(typeof(oOptions['animation'])=='boolean')

			{

				oMenu['animation'] = !!oOptions['animation']; 

				

			};

			

			

			if(typeof(oOptions['dependent'])=='boolean')

			{

				oMenu['dependent'] = !!oOptions['dependent']; 

			};

			

			if(typeof(oOptions['easeOut'])=='boolean')

			{

				oMenu['easeOut'] = !!oOptions['easeOut']; 

			};

			

			if(typeof(oOptions['seconds'])=='number')

			{

				oMenu['seconds'] = Math.max(0 , oOptions['seconds'] ); 

			};

			

			if(typeof(oOptions['onOpen'])=='function')

			{

				oMenu['onOpen'] = oOptions['onOpen'];

			};

			

			if(typeof(oOptions['onClose'])=='function')

			{

				oMenu['onClose'] = oOptions['onClose'];

			};

		

			if(oOptions['openedIds'].shift)

			{

				oMenu['openedIds'] = oOptions['openedIds'];

			};

			

			

			for(var i=0;i<oMenu['openedIds'].length;i++)

			{

				var sId = oMenu['openedIds'][i];

				var dt = document.getElementById( sId  );

				

				if(dt && dt.tagName.toUpperCase() == 'DT')

				{

					var dl = dt.parentNode;

					var dd = getDD(dt);

					expand(dl,dt,dd);

				}

				else if(!dt)

				{

					function onDtAvailable()

					{

						var dt = this;

						if(dt.tagName.toUpperCase() == 'DT')

						{

							var dl = dt.parentNode;

							var dd = getDD(dt);

							expand(dl,dt,dd);

						};	

					};

					

					YUE.onAvailable(sId,onDtAvailable);

				}			

			};

			

			

		};

		

		if(document.getElementById(id))

		{

			setMunu(document.getElementById(id))

		}

		else

		{	

			YUE.onAvailable(id,setMunu);	

		};	

	}

 };//endof api

 

 return oApi;

 

})();