function dropdownMulti(contain, dataName,listName,returnName,selected,listTitle,typeDropdown)

{

	this.contain 			= 	null;

	this.dataName 			= 	null;

	this.listName 			= 	null;

	this.returnName 		= 	null;

	this.selected 			= 	null;

	this.listTitle 			= 	null;

	this.typeDropdown 		= 	null;

	this.data 				= 	null;

	this.className			=	"dropdown";

	this.hiddenNode			=	0;

	this.selectedlDefault	=	"- Tất cả -";

	



	this.initialize		=	function(contain,dataName,listName,returnName,typeDropdown,selected,listTitle)

	{

		this.typeDropdown 	= 	typeDropdown;

		this.contain		=	document.getElementById(contain);

		this.dataName 		= 	dataName;

		this.listName 		= 	listName;

		this.returnName 	= 	returnName;

		this.selected 		= 	selected;

		this.listTitle 		= 	listTitle;

		this.data			=	eval(this.dataName );	

		

		

		

		if (typeDropdown == 1)

		{

			this.selectedlDefault  = "- Chọn một -"

		}

		

		this.setupSelect(listName,returnName);

		this.resetAll(selected); 

	}

	

	this.getHandle		=	function(data)

	{

		

		var rs;

		if(rs =  eval(data) )

		{

			return rs

		}

		return false

	}

	

	this.setData		=	function(global,data,id,selected)

	{

		if(!id) return;

		var slen				=	id.length

		var sl					=	(selected) ? selected:id.value

		

		var j 					= 	0;

		var is_sl;

		var hiddenNode			=	global.hiddenNode;

		var	selectedlDefault	= 	global.selectedlDefault

		var option;

		var	text;

		 //clear curent select

		while(slen)

		{

			id.options[slen-1] = null

			slen	=	id.length

		}

		

		if( data.constructor==String ) return 0;

		

		option			= 	document.createElement("option")

		option.value	=  	-1

		text			=	document.createTextNode(selectedlDefault) 

		option.appendChild(text)

		id.appendChild(option)

		

		//id[j++]=new Option(selectedlDefault, -1, false,false) 

		//alert(sl)

		for(var i in data)

		{

			is_sl = (sl==i) ? true:false;

			

			if( data[i].constructor==Object ) 

			{

				option			= 	document.createElement("option")

				option.value	=  	i

				text			=	document.createTextNode(data[i]['n']) 

				option.appendChild(text)

				id.appendChild(option)

				

				if (is_sl)

				{

					option.selected = true;

				}

				

				j = 1 

			}

			else

			{

				if(i !='n')

				{

					option			= 	document.createElement("option")

					option.value	=  	i

					text			=	document .createTextNode(data[i]) 

					option.appendChild(text)

					id.appendChild(option)

					if (is_sl)

					{

						option.selected = true;

					}	

					j = 1

				}

			}

			

			if (hiddenNode && is_sl)

			{

				hiddenNode.value = i

			}

				

		}

		

		return (j>0) ? 1:0;

	}

	

	this.getParentValue	=	function(global,level)

	{

	

		var contain				=	global.contain;  

		var select				=	contain.getElementsByTagName("select");

		if ( select && select[level-2] )

		{

			return (select[level-2].value)

		}

	}

	

	this.setupSelect	=	function(array,returnName)

	{

		if (this.contain != null)

		{

			var global 		= 	this;

			var len			=	array.length;

			var selectNode;	

			var div;

			var lastId;

			if(returnName)

			{

				hiddenNode			= 	document.createElement("input") 

				this.hiddenNode		=	hiddenNode

				hiddenNode.type		=	"hidden"

				hiddenNode.name 	=	returnName

				hiddenNode.id		=	returnName

				hiddenNode.value	=	-1;

				this.contain.appendChild(hiddenNode)

			}

		}

			

		for(	var i = 0; i< len ;i++	)

		{

			selectNode  			= 	document.createElement("select") 

										selectNode.setAttribute("NAME",array[i])

			div						=	document.createElement("div") 

			div.style.margin		=	"5" 

			selectNode.style.width	=	"240";

			selectNode.className	=	"fieldselect";

			selectNode.id			=	(i+1)

			span					=	document.createElement("span")

			span2  					= 	document.createElement("span") 

			

			span2.appendChild(selectNode)

			

			if (this.listTitle)

			{

				if (this.listTitle[i])

				{	  

				  span.innerHTML = "<b> "+ this.listTitle[i] + ":<\/b>"   

				}

			}

			else

			{

				span.innerHTML = "<b>Cấp "+ (i+1) + ":<\/b>&nbsp;" 

			}

			

			div.appendChild(span)

			div.appendChild(span2)

			

			this.contain.appendChild(div)  

			

			selectNode.onchange = function()

			{	

				if ( this.id ){				

					global.resetLevel(global,this.id,"-1")				

					if(returnName)

					{

						if ( this.value == -1 &&  Number(this.id) > 1 )

						{

							hiddenNode.value = global.getParentValue(global,this.id)

						}

						else 

						{

							hiddenNode.value	=	this.value;

						}

					}

					

				}

			}

			

		}

	

	}

	

	this.resetLevel		=	function(global,level,selected)

	{

		var contain				=	global.contain;  

		var select				=	contain.getElementsByTagName("select");

		var len					=	select.length;

		var source				=	global.dataName; 

		var getHandle			=	global.getHandle; 

		var sourceHandle		=	null;

		var set               	=	0; 

		var setData				=	global.setData; 

		var	resetLevel			= 	global.resetLevel;

		

		

		

		for(var i=0 ; i<level ; i++)

		{

			source += "["+ select[i].value +"]";

			

			if ( !select[i].value )

			{

				return resetLevel(global,(i),selected);

			}

			

			if ( getHandle(source) == false)

			{

				return resetLevel(global,(i),selected);

			}

			select[i].style.display = ""

			select[i].parentNode.parentNode.style.display = ""

		}

		

		if( select[i] ){

			if (sourceHandle = getHandle(source))

			{

				set = setData(global,sourceHandle,select[i],selected);

				select[i].style.display = ""

				select[i].parentNode.parentNode.style.display = "" 

			}

		}

		

		var s =  ( Number(level) + Number(set) ); 

		

		while( s < len )

		{

			if(select[s]){

				select[s].style.display = "none"

				select[s].parentNode.parentNode.style.display = "none"  

			} 	

			s++;

		}

	}

	

	this.resetAll		=	function(array)

	{

		if(!array) array = new Array();

		

		if ( this.contain != null )

		{

			var contain		=	this.contain;

			var select		=	contain.getElementsByTagName("select");

			var len			=	select.length;

			

			

			var	selected;

			

			for ( var i=0 ; i<len ; i++ )

			{

				

				selected	=	(array[i]) ? array[i] :""; 				

				this.resetLevel(this,i,selected)

			}

		}	

		

	}

	this.initialize(contain,dataName,listName,returnName,typeDropdown,selected,listTitle);

}