var orientation=0	// 0-horizontal 1-vertical
var imgPath = "./images/"


var	ie=(navigator.appName=='Microsoft Internet Explorer')
var	ns=(navigator.appName=='Netscape')
var	dom=document.getElementById
var lw_menuId, lw_trigger, to1
var s1


function Tmenu (id, parentId, url, description, img) {
	this.id = id
	this.parentId = parentId
	this.url = url
	this.description = description
	this.numChild = 0
	this.levelId = 0
	this.img = img
}


var menu = new Array()
var menuCounter = 0
var numLevel = 0
var prevMenuId = -1
var nNowAt = 0

function displayMenuItem(menuId) { 
        
        var sHTML 
        
        if ((orientation==1)||(menu[menuId].levelId > 0)) 
        { 
                sHTML += "<tr>" 
        } 
        
        if (menu[menuId].description == 'empty')
        {
			sHTML = "<td class='DMEMenu' width='33px' id='menu_"+menuId+"'><br></td>"
        } 
        else
        {     

        sHTML = "<td class='DMEMenu' id='menu_"+menuId+"' style='cursor:pointer;cursor:hand;' onmouseover='clearInterval(s1);"

        if (menu[menuId].numChild != 0) { 
                sHTML += "showSubmenu("+menu[menuId].id+",this);hideSubmenu(menu["+menuId+"].levelId+1);" 
        } 
        else 
        { 
                sHTML += "prevMenuId = "+menuId+";hideSubmenu(menu["+menuId+"].levelId);" 
        } 

        sHTML += "nNowAt="+menuId+";' onclick='document.location.href=\""+menu[menuId].url+"\"' onmouseout='s1=setInterval(\"hideSubmenu(0)\",1000);'><table cellpadding=0 cellspacing=0 border=0><tr>"

        if (menu[menuId].levelId > 0) 
        { 
                sHTML += "<td class='DMEMenuDropDownImg'><img class='DMEMenuDropDownImg' src='" 
                if (menu[menuId].img=="") 
                { 
                        sHTML += imgPath + "trans.gif" 
                } 
                else 
                { 
                        sHTML += imgPath + menu[menuId].img 
                } 
                sHTML += "'></td><td class='DMEMenuDropDown' width='5px'><br></td>" 
       
                //Menus in drop down 
                sHTML += "<td class='DMEMenuDropDown' width='65px'><span class='DMEMenuDropDown' onmouseover=\"this.className='DMEMenuDropDown2';\" onmouseout=\"this.className='DMEMenuDropDown';\"> " + menu[menuId].description.replace(" ","&nbsp;") + "</span></td>"

        } 
        else 
        { 
                //Top Level Menus 
                sHTML += "<td class='DMEMenu'><span class='DMEMenu' onmouseover=\"this.className='DMEMenu2';\" onmouseout=\"this.className='DMEMenu';\">" + menu[menuId].description.replace(" ","&nbsp;") + "</span></td>"

        } 
        
        sHTML += "</tr></table></td>" 


        if ((orientation==1)||(menu[menuId].levelId > 0)) 
        { 
                sHTML += "</tr>" 
        }       
        }
        //alert(sHTML);
        return sHTML 
} 


function mapID (id) {
	for (var i=0;i<menuCounter;i++)
	{
		if (menu[i].id==id)
		{
			return i
		}
	}
	return -1
}

function showSubmenu(menuId,trigger) {
	lw_menuId = menuId
	lw_trigger = trigger

	if (ns)
	{
		to1 = setTimeout("showActualSubmenu(lw_menuId,lw_trigger)",50)			
	}
	else
	{
		showActualSubmenu(lw_menuId,lw_trigger)
	}
}

function showActualSubmenu(menuId,trigger) {
	var nLevel = 0
	var leftpos = 0 
	var nIndex=0

	if (menuId>0)
	{
		lw_calcpos(trigger)

		for (var i=0;i<menuCounter;i++)
		{
			if (menu[i].id==menuId)
			{	
				nLevel = menu[i].levelId
				nIndex = i
			}
		}

		if ((orientation==1)||(menu[nIndex].parentId>0))
		{
			lw_getObj("menu_level_"+nLevel).top=lw_toppos
			leftpos = lw_leftpos + lw_width + 5

			if (nLevel==0) {
				leftpos -= 3
			}
		}
		else {
			lw_getObj("menu_level_"+nLevel).top = lw_toppos + lw_height + 2
			leftpos = lw_leftpos
		}

		lw_getObj("menu_level_"+nLevel).left=leftpos

		sHTML = "<table cellpadding=0 cellspacing=0 border=0>"
		for (var i=0;i<menuCounter;i++)
		{
			if (menu[i].parentId==menuId)
			{
				sHTML += displayMenuItem (i)
			}
		}
		sHTML += "</table>"

		document.getElementById("menu_level_"+nLevel+"_content").innerHTML=sHTML
		lw_showLayer('menu_level_'+nLevel)
	} 
}

function hideSubmenu(levelId) {
	for (var cnt=levelId; cnt<numLevel; cnt++)
	{
		lw_hideLayerName("menu_level_"+cnt)
	}
}

function DrawMenu ()  {

	for (var i=0; i<numLevel ; i++)
	{
		lw_createLayer("menu_level_"+i,0,0,0,0,100)
	}
	
	sHTML="<table width=100% cellpadding=0 cellspacing=0>"
	for (var i=0; i<menuCounter; i++)
	{
		if (menu[i].parentId==0)
		{		
			sHTML += displayMenuItem (i)
		}
		else if (menu[i].parentId==-1)
		{		
			sHTML += "<tr><td>" + menu[i].description + "</td></tr>"
		}
	}
	sHTML += "</table>"

	document.writeln(sHTML)

}

function getLevel (menuId) {
	var pId=menuId
	var nLevel=0

	while (pId!=0)
	{
		nLevel++
		for (var i=0;i<menuCounter;i++)
		{
			if (menu[i].id==pId)
			{	
				pId = menu[i].parentId
			}
		}
	}

	return nLevel
}

function AddMenuItem (id, parentId, url, description, img)  {

	menu[menuCounter++] = new Tmenu (id, parentId, url, description, img)

	if (parentId>0)
	{
		for (i=0;i<menuCounter;i++)
		{
			if (menu[i].id==parentId)
			{
				menu[i].numChild++
			}
		}
		menu[menuCounter-1].levelId = getLevel(parentId)

		if ( numLevel < menu[menuCounter-1].levelId)
		{	
			numLevel = menu[menuCounter-1].levelId
		}
	}	 
	else if (parentId==0)
	{
		menu[menuCounter-1].levelId = 0
	}
	else
	{
		menu[menuCounter-1].levelId = -1
	}
}

function handleonclick() {
	if (ns)
	{
		lw_closeAllLayers()
	}
	else
	{
		lw_closeAllLayers(event)
	}
}

function handlekeypress(e) {
	if (ns)
	{
		var keyCode = e.keyCode?e.keyCode:e.which?e.which:e.charCode;
		if ((keyCode==27)||(keyCode==1))
		{
			handleonclick()
		}
	}
	else
	if ((event.keyCode==0)||(event.keyCode==27))
	{
		handleonclick()
	}
}


document.onkeypress = handlekeypress
document.onclick = handleonclick