/************************************************************************************************************ 
   (C) www.dhtmlgoodies.com, October 2005 
    
   This is a script from www.dhtmlgoodies.com. You will find this and a lot of other scripts at our website.    
    
   Terms of use: 
   You are free to use this script as long as the copyright message is kept intact. However, you may not 
   redistribute, sell or repost it without our permission. 
    
   Update log: 
    
      March, 15th: Fixed problem with sliding in MSIE 
    
   Thank you! 
    
   www.dhtmlgoodies.com 
   Alf Magne Kalleland 
    
   ************************************************************************************************************/    
var expandFirstItemAutomatically = false;   // Expand first menu item automatically ? 
var initMenuIdToExpand = false;   // Id of menu item that should be initially expanded. the id is defined in the <li> tag. 
var expandMenuItemByUrl = true;   // Menu will automatically expand by url - i.e. if the href of the menu item is in the current location, it will expand 


var initialMenuItemAlwaysExpanded = true;   // NOT IMPLEMENTED YET 

var dhtmlgoodies_slmenuObj; 
var divToScroll = false; 
var ulToScroll = false;    
var divCounter = 1; 
var otherDivsToScroll = new Array(); 
var divToHide = false; 
var parentDivToHide = new Array(); 
var ulToHide = false; 
var offsetOpera = 0; 
if(navigator.userAgent.indexOf('Opera')>=0)offsetOpera=1;    
var slideMenuHeightOfCurrentBox = 0; 
var objectsToExpand = new Array(); 
var initExpandIndex = 0; 
var alwaysExpanedItems = new Array(); 
    
function popMenusToShow() 
{ 
   var obj = divToScroll; 
   var endArray = new Array(); 
   while(obj && obj.tagName!='BODY'){ 
      if(obj.tagName=='DIV' && obj.id.indexOf('slideDiv')>=0){ 
         var objFound = -1; 
         for(var no=0;no<otherDivsToScroll.length;no++){ 
            if(otherDivsToScroll[no]==obj){ 
               objFound = no;       
            }                
         }    
         if(objFound>=0){ 
            otherDivsToScroll.splice(objFound,1);    
         }       
      }    
      obj = obj.parentNode; 
   }    
} 

function showSubMenu(e,inputObj) 
{ 

   if(this && this.tagName)inputObj = this.parentNode; 
   if(inputObj && inputObj.tagName=='LI'){ 
      divToScroll = inputObj.getElementsByTagName('DIV')[0]; 
      for(var no=0;no<otherDivsToScroll.length;no++){ 
         if(otherDivsToScroll[no]==divToScroll)return; 
      }          
   } 
   hidingInProcess = false; 
   if(otherDivsToScroll.length>0){ 
      if(divToScroll){             
         if(otherDivsToScroll.length>0){ 
            popMenusToShow(); 
         } 
         if(otherDivsToScroll.length>0){    
            autoHideMenus(); 
            hidingInProcess = true; 
         } 
      }    
   }       
   if(divToScroll && !hidingInProcess){ 
      divToScroll.style.display=''; 
      otherDivsToScroll.length = 0; 
      otherDivToScroll = divToScroll.parentNode; 
      otherDivsToScroll.push(divToScroll);    
      while(otherDivToScroll && otherDivToScroll.tagName!='BODY'){ 
         if(otherDivToScroll.tagName=='DIV' && otherDivToScroll.id.indexOf('slideDiv')>=0){ 
            otherDivsToScroll.push(otherDivToScroll); 
                            
         } 
         otherDivToScroll = otherDivToScroll.parentNode; 
      }          
      ulToScroll = divToScroll.getElementsByTagName('UL')[0]; 
      if(divToScroll.style.height.replace('px','')/1<=1)scrollDownSub(); 
   }    
    

} 



function autoHideMenus() 
{ 
   if(otherDivsToScroll.length>0){ 
      divToHide = otherDivsToScroll[otherDivsToScroll.length-1]; 
      parentDivToHide.length=0; 
      var obj = divToHide.parentNode.parentNode.parentNode; 
      while(obj && obj.tagName=='DIV'){          
         if(obj.id.indexOf('slideDiv')>=0)parentDivToHide.push(obj); 
         obj = obj.parentNode.parentNode.parentNode; 
      } 
      var tmpHeight = (divToHide.style.height.replace('px','')/1 - slideMenuHeightOfCurrentBox); 
      if(tmpHeight<0)tmpHeight=0; 
      if(slideMenuHeightOfCurrentBox)divToHide.style.height = tmpHeight  + 'px'; 
      ulToHide = divToHide.getElementsByTagName('UL')[0]; 
      slideMenuHeightOfCurrentBox = ulToHide.offsetHeight; 
      scrollUpMenu();       
   }else{ 
      slideMenuHeightOfCurrentBox = 0; 
      showSubMenu();          
   } 
} 


function scrollUpMenu() 
{ 

   var height = divToHide.offsetHeight; 
   height-=15; 
   if(height<0)height=0; 
   divToHide.style.height = height + 'px'; 

   for(var no=0;no<parentDivToHide.length;no++){    
      parentDivToHide[no].style.height = parentDivToHide[no].getElementsByTagName('UL')[0].offsetHeight + 'px'; 
   } 
   if(height>0){ 
      setTimeout('scrollUpMenu()',5); 
   }else{ 
      divToHide.style.display='none'; 
      otherDivsToScroll.length = otherDivsToScroll.length-1; 
      autoHideMenus();          
   } 
}    

function scrollDownSub() 
{ 
   if(divToScroll){          
      var height = divToScroll.offsetHeight/1; 
      var offsetMove =Math.min(15,(ulToScroll.offsetHeight - height)); 
      height = height +offsetMove ; 
      divToScroll.style.height = height + 'px'; 
       
      for(var no=1;no<otherDivsToScroll.length;no++){ 
         var tmpHeight = otherDivsToScroll[no].offsetHeight/1 + offsetMove; 
         otherDivsToScroll[no].style.height = tmpHeight + 'px'; 
      }          
      if(height<ulToScroll.offsetHeight)setTimeout('scrollDownSub()',5); else { 
         divToScroll = false; 
         ulToScroll = false; 
         if(objectsToExpand.length>0 && initExpandIndex<(objectsToExpand.length-1)){ 
            initExpandIndex++; 
             
            showSubMenu(false,objectsToExpand[initExpandIndex]); 
         } 
      } 
   } 
} 
    
function initSubItems(inputObj,currentDepth) 
{       
   divCounter++;       
   var div = document.createElement('DIV');   // Creating new div       
   div.style.overflow = 'hidden';    
   div.style.position = 'relative'; 
   div.style.display='none'; 
   div.style.height = '1px'; 
   div.id = 'slideDiv' + divCounter; 
   div.className = 'slideMenuDiv' + currentDepth;       
   inputObj.parentNode.appendChild(div);   // Appending DIV as child element of <LI> that is parent of input <UL>       
   div.appendChild(inputObj);   // Appending <UL> to the div 
   var menuItem = inputObj.getElementsByTagName('LI')[0]; 
   while(menuItem){ 
      if(menuItem.tagName=='LI'){ 
         var aTag = menuItem.getElementsByTagName('A')[0]; 
         aTag.className='slMenuItem_depth'+currentDepth;    
         var subUl = menuItem.getElementsByTagName('UL'); 
         if(subUl.length>0){ 
            initSubItems(subUl[0],currentDepth+1);                
         } 
         aTag.onclick = showSubMenu;             
      }          
      menuItem = menuItem.nextSibling;                   
   }       
} 

function initSlideDownMenu() 
{ 
   dhtmlgoodies_slmenuObj = document.getElementById('dhtmlgoodies_slidedown_menu'); 
   dhtmlgoodies_slmenuObj.style.visibility='visible'; 
   var mainUl = dhtmlgoodies_slmenuObj.getElementsByTagName('UL')[0];       
   var mainMenuItem = mainUl.getElementsByTagName('LI')[0]; 
   mainItemCounter = 1; 
   while(mainMenuItem){          
      if(mainMenuItem.tagName=='LI'){ 
         var aTag = mainMenuItem.getElementsByTagName('A')[0]; 
         aTag.className='slMenuItem_depth1';    
         var subUl = mainMenuItem.getElementsByTagName('UL'); 
         if(subUl.length>0){ 
            mainMenuItem.id = 'mainMenuItem' + mainItemCounter; 
            initSubItems(subUl[0],2); 
            aTag.onclick = showSubMenu; 
            mainItemCounter++; 
         }             
      }          
      mainMenuItem = mainMenuItem.nextSibling;    
   }       
    
   if(location.search.indexOf('mainMenuItemToSlide')>=0){ 
      var items = location.search.split('&'); 
      for(var no=0;no<items.length;no++){ 
         if(items[no].indexOf('mainMenuItemToSlide')>=0){ 
            values = items[no].split('='); 
            showSubMenu(false,document.getElementById('mainMenuItem' + values[1]));    
            initMenuIdToExpand = false;             
         } 
      }          
   }else if(expandFirstItemAutomatically>0){ 
      if(document.getElementById('mainMenuItem' + expandFirstItemAutomatically)){ 
         showSubMenu(false,document.getElementById('mainMenuItem' + expandFirstItemAutomatically)); 
         initMenuIdToExpand = false; 
      } 
   } 

   if(expandMenuItemByUrl) 
   { 
      var aTags = dhtmlgoodies_slmenuObj.getElementsByTagName('A'); 
      for(var no=0;no<aTags.length;no++){ 
         var hrefToCheckOn = aTags[no].href;             
         if(location.href.indexOf(hrefToCheckOn)>=0 && hrefToCheckOn.indexOf('#')<hrefToCheckOn.length-1){ 
            initMenuIdToExpand = false; 
            var obj = aTags[no].parentNode; 
            while(obj && obj.id!='dhtmlgoodies_slidedown_menu'){ 
               if(obj.tagName=='LI'){                      
                  var subUl = obj.getElementsByTagName('UL'); 
                  if(initialMenuItemAlwaysExpanded)alwaysExpanedItems[obj.parentNode] = true; 
                  if(subUl.length>0){                         
                     objectsToExpand.unshift(obj); 
                  } 
               } 
               obj = obj.parentNode;    
            } 
            showSubMenu(false,objectsToExpand[0]); 
            break;                
         }          
      } 
   } 
          
   if(initMenuIdToExpand) 
   { 
      objectsToExpand = new Array(); 
      var obj = document.getElementById(initMenuIdToExpand) 
      while(obj && obj.id!='dhtmlgoodies_slidedown_menu'){ 
         if(obj.tagName=='LI'){ 
            var subUl = obj.getElementsByTagName('UL'); 
            if(initialMenuItemAlwaysExpanded)alwaysExpanedItems[obj.parentNode] = true; 
            if(subUl.length>0){                   
               objectsToExpand.unshift(obj); 
            } 
         } 
         obj = obj.parentNode;    
      } 
       
      showSubMenu(false,objectsToExpand[0]); 

   } 
    

       
}