// written by Tan Ling Wee
// last updated 9 October 2003
// email : fuushikaden@yahoo.com

//modified by Martin Venter 9 October
//    - Added MenuFontColor property
//    - Previously I added support to overlay ie objects like <select> and <objects> with the OverlayIEObjects and 
//      HideIEObjects properties. This only works in IE5.5 and up so I have changed the code to detect the browser
//      properly and then determine whether to overlay ie objects or to hide them. Credit to Bard who picked up this
//      problem in the calendar.
//    - Added target property. Reserved words can also be used. (_blank, _top, _parent, _self)
//      If the target is not passed then "_self" is assumed.
//modified by Martin Venter 14 September
//    - Added Opera detection code.
//    - Added HideIEObjects property to enable or disable the code execution of 
//      hiding/showing IE objects. It will also hide\show <OBJECTS> like flash objects.
//    - Added OverlayIEObjects property. If set true and its an IE browser some extra logic is added so that 
//      the calendar will show above IE objects. I cant take all the credit for this, I got the idea from 
//      this url - http://dotnetjunkies.com/weblog/jking/posts/488.aspx and implemented it.
//    - Added addIFrame(), showIFrame() and hideIFrame() functions. Used to implement the OverlayIEObjects
//      property.
//    - Added missing semi-colons so that one can run the script through a code chruncher.
//    - Fixed image tag in the DrawMenu() function.
//    - The menuFont property was not implemented anywhere in the code. This has been fixed.
//    - Added menuFontSize property.
//    - menuSize property is not implemented anywhere. I'm not going to implement it at this stage. 
//email: martin@unirnd.co.za
/////////////////////////////////////////////////////////////////////////////

var ie=(navigator.appName=='Microsoft Internet Explorer');
var ns=(navigator.appName=='Netscape');
var dom=document.getElementById;
var opera = (navigator.userAgent.indexOf("Opera")!=-1)?true:false;

var appVer = navigator.appVersion.toLowerCase();
var is_minor;
var is_major;
var iePos  = appVer.indexOf('msie');
 if (iePos !=-1) {
   is_minor = parseFloat(appVer.substring(iePos+5,appVer.indexOf(';',iePos)))
   is_major = parseInt(is_minor);
 }
var is_ie   = ((iePos!=-1) && (!opera));
var is_ie5_5up =(is_ie && is_minor >= 5.5);

var lw_menuId, lw_trigger, to1;
var s1;

/////////////////////////////////////////////////////////////////////////////

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

/////////////////////////////////////////////////////////////////////////////

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

function displayMenuItem(menuId) {
var sHTML;

 if (menu[menuId].parentId>0){
  ItemForeground = subItemForeground;
  Border = subItemBorder;
  Background = subItemBackground;
 
  HoverForeground = subItemHoverForeground;
  HoverBorder = subItemHoverBorder;
  HoverBackground = subItemHoverBackground;
 }else{
  ItemForeground = mainItemForeground;
  Border = mainItemBorder;
  Background = mainItemBackground;
 
  HoverForeground = mainItemHoverForeground;
  HoverBorder = mainItemHoverBorder;
  HoverBackground = mainItemHoverBackground;
 }
 
 if ((orientation==1)||(menu[menuId].levelId>0)){
   sHTML += "<tr>";
 } 
 
 if (menu[menuId].description!='-'){
   sHTML = "<td id='menu_"+menuId+"' style='cursor:pointer;cursor:hand;background-color:"+ Background +";color:\""+ ItemForeground +"\"; border-bottom: 1px solid #ffffff; border"+ Border +"'; onmouseover='clearInterval(s1);this.style.backgroundColor=\"" + HoverBackground + "\";this.style.color=\"" + HoverForeground + "\";this.style.borderColor=\"" + HoverBorder + "\";";
 
   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+";clearAll("+menu[menuId].levelId+","+menu[menuId].parentId+")' ";
   //sHTML += "onclick='document.location.href=\""+menu[menuId].url+"\";' ";
   if ((menu[menuId].target == "undefined") || (menu[menuId].target == "")){
     menu[menuId].target = "_self";
   }


   // Open link in current document
   if (menu[menuId].target=="_self"){
     sHTML += "onclick='document.location=\""+menu[menuId].url+"\";' ";
   }
   else if (menu[menuId].target=="_top"){
     sHTML += "onclick='top.location=\""+menu[menuId].url+"\";' ";
   }


   //Open link in new window
   else if (menu[menuId].target=="_blank"){
     sHTML += "onclick='window.open(\""+menu[menuId].url+"\");' ";
   }
   // Open link in parent frame
   else if (menu[menuId].target=="_parent"){
     sHTML += "onclick='parent.location=\""+menu[menuId].url+"\";' ";
   }


   // Open link in the specified frame
   else{
     sHTML += "onclick='parent.frames[\""+menu[menuId].target+"\"].location=\""+menu[menuId].url+"\";' ";
   } 

   // Sets the full widht of the table
   sHTML += "onmouseout='s1=setInterval(\"resetMenu();hideSubmenu(0)\",1000);'><table cellpadding=0 cellspacing=0 border=0 width='100%'><tr>";


   // Adds either the trans gif or the specified gif
   if (menu[menuId].levelId>0)
   {
     sHTML += "<td style='padding-left:0px' width=1><img src='";
     if (menu[menuId].img==""){
       sHTML += imgPath + "trans.gif";
     }else{
       sHTML += imgPath + menu[menuId].img;
     }
     sHTML += "' width=1 height=16 border=0></td>";
   }


   if ((orientation==0) && (menu[menuId].levelId==0)){
     nArrowWidth = 0;
   }else{
     nArrowWidth = 10;
   }

   //sHTML += "<td nowrap style='padding-left:5px;padding-right:5px;font-family:" + menuFont + ";font-size:" + menuFontSize + ";' align=left>" + menu[menuId].description.replace(" ","&nbsp;") + "</td><td style='padding-right:2px' align=right width="+nArrowWidth+">";

   sHTML += "<td width=\"110\" onMouseOver=\"style.color='#ff6600'\" onMouseOut=\"style.color='ffffff'\" nowrap style='height: 33px; padding: 5px;padding-left: 15px;font-weight:bold;font-family:" + menuFont + ";font-size:" + menuFontSize + ";color:" + menuFontColor + ";' align=left>" + menu[menuId].description.replace(" ","&nbsp;") + "</td><td style='padding-right:2px' align=right width="+nArrowWidth+">";
   if (menu[menuId].numChild>0){
     if ((orientation==0)&&(menu[menuId].levelId==0)){
       sHTML += "<img align=\"absbottom\" src=\"images/pijltje.gif\">&nbsp";
     }else{
       sHTML += "<img align=\"absbottom\" src=\"images/pijltje.gif\">&nbsp";
     }
   }else{
     sHTML += "&nbsp;";
   }
   sHTML += "</td></tr></table></td>";
 }else{
   sHTML = "<td><img src='" + imgPath + "trans.gif' height=2></td></tr><tr><td onmouseover='' bgcolor='#d0d0d0'><img src='" + imgPath + "trans.gif' height=1></td></tr><tr><td><img src='" + imgPath + "trans.gif' height=2></td>";
 }

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

function clearAll(levelId, parentId) {
 if (levelId>0){
   Border = subItemBorder;
   Background = subItemBackground;
 }else{
   Border = mainItemBorder;
   Background = mainItemBackground;
 }

 for (i=0;i<menuCounter;i++){
   if (menu[i].levelId==levelId){
     if ((i!=nNowAt) && (menu[i].parentId==parentId) && (menu[i].description!="-")) {
       lw_getObj("menu_"+i).backgroundColor=Background;
       lw_getObj("menu_"+i).borderColor=Border;
     }
   }
 }
}

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 ()  {
var sHTML = "";
 for (var i=0; i<numLevel; i++){
 lw_createLayer("menu_level_"+i,0,0,0,0,"#ffffff","#d0d0d0",100);
 }

 sHTML='<div id=\"fwwMenuBar\" style=\"background-color:' + mainItemBackground + ';\" onselectstart="return false;">';
 sHTML+="<table 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><img src='" + imgPath + "trans.gif' height=2></td></tr><tr bgcolor='"+mainItemBackground+"'><td style='padding:5px'><b>" + menu[i].description + "</b></td></tr>";
   }
 }
 sHTML += "</table>";
 sHTML += "</div>";
 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, target){

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

 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);
 }
 resetMenu();
}

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();
   }
 resetMenu();
}

function resetMenu () {
 for (i=0;i<menuCounter;i++){
   if (menu[i].levelId==0){
     lw_getObj("menu_"+i).backgroundColor=mainItemBackground;
     lw_getObj("menu_"+i).borderColor=mainItemBorder;
   }
 }
}

document.onkeypress = handlekeypress;
document.onclick = handleonclick;