//JSCookTree v2.01. (c) Copyright 2002 by Heng Yuan. Permission is hereby granted,free of charge,to any person obtaining a copy of this software and associated documentation files(the "Software"),to deal in the Software without restriction,including without limitation the rights to use,copy,modify,merge,publish,distribute,sublicense,and/or sell copies of the Software,and to permit persons to whom the Software is furnished to do so,subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS",WITHOUT WARRANTY OF ANY KIND,EXPRESSOR IMPLIED,INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,ITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,DAMAGES OR OTHER LIABILITY,WHETHER IN AN ACTION OF CONTRACT,TORT OR OTHERWISE,ARISINGFROM,OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
function ctTreeInfo(nodeProperties,prefix,hideType,expandLevel){this.nodeProperties=nodeProperties;this.currentItem=null;this.prefix=prefix;this.hideType=hideType;this.expandLevel=expandLevel;this.beginIndex=0;this.endIndex=0;}
function ctMenuInfo(id,idSub){this.id=id;this.idSub=idSub;}

var _ctIDSubMenuCount=0;var _ctIDSubMenu='ctSubTreeID';var _ctCurrentItem=null;var _ctNoAction=new Object();
var _ctItemList=new Array();var _ctTreeList=new Array();var _ctMenuList=new Array();

var _ctMenuInitStr='';

var _ctNodeProperties =
{
folderLeft: [['','']],

  folderRight: [['','']],
itemLeft: [''],
itemRight: [''],
folderConnect: [[['',''],['','']]],
itemConnect: [['',''],['','']],
spacer: [['     ','     ']],
themeLevel: 1
};


function ctNewSubMenuID()
{
return _ctIDSubMenu +(++_ctIDSubMenuCount);
}

function ctActionItem()
{
return ' onmouseover="ctItemMouseOver(this.parentNode)" onmouseout="ctItemMouseOut(this.parentNode)" onmousedown="ctItemMouseDown(this.parentNode)" onmouseup="ctItemMouseUp(this.parentNode)"';
}

function ctNoActionItem(item)
{
return item[1];
}

function ctGetPropertyLevel(level,property)
{
return(level >= property.length) ?(property.length-1) : level;
}


function ctCollapseTree(id)
{
var menu=ctGetObject(id).firstChild;
var i;
for(i=0; i < menu.ctItems.length; ++i)
ctCloseFolder(menu.ctItems[i]);
}

function ctExpandTree(id,expandLevel)
{
if(expandLevel <= 0)
return;

var obj=ctGetObject(id);
if(!obj)
return;

var thisMenu=obj.firstChild;
if(!thisMenu)
return;

ctExpandTreeSub(thisMenu,expandLevel)
}

function ctExpandTreeSub(subMenu,expandLevel)
{
if(subMenu.ctLevel >= expandLevel)
return;
var i;
var item;
for(i=0; i < subMenu.ctItems.length; ++i)
{
item=subMenu.ctItems[i];
if(item.ctIdSub)
{
ctOpenFolder(item);
ctExpandTreeSub(ctGetObject(item.ctIdSub),expandLevel);
}
}
}

function ctExposeItem(treeIndex,link)
{
if(treeIndex < 0 || treeIndex >= _ctTreeList.length)
return;
var tree=_ctTreeList[treeIndex];
var endIndex=tree.endIndex;
var i;
for(i=tree.beginIndex; i < endIndex; ++i)
{
if(_ctItemList[i].length > 2 &&
_ctItemList[i][2]==link)
{
return ctExposeTreeIndex(treeIndex,i);
}
}
}
function ctExposeTreeIndex(treeIndex,index)
{
var item=ctGetObject('ctItemID' +(_ctTreeList[treeIndex].beginIndex+index)).parentNode;
if(!item)
return null;

var parentItem=ctGetThisMenu(item).ctParent;
if(parentItem)
ctExposeTreeIndexSub(parentItem);

ctSetSelectedItem(item);
return item;
}

function ctExposeTreeIndexSub(item)
{
var parentItem=ctGetThisMenu(item).ctParent;
if(parentItem)
ctExposeTreeIndexSub(parentItem);
ctOpenFolder(item);
}


function ctMarkItem(treeIndex,link)
{
if(treeIndex < 0 || treeIndex >= _ctTreeList.length)
return;
var tree=_ctTreeList[treeIndex];
var endIndex=tree.endIndex;
var i;
for(i=tree.beginIndex; i < endIndex; ++i)
{
if(_ctItemList[i].length > 2 &&
_ctItemList[i][2]==link)
{
var item=ctGetObject('ctItemID' +(_ctTreeList[treeIndex].beginIndex+i)).parentNode;
if(!item)
return null;
if(item.id=="JSCookTreeItem")
item.id='JSCookTreeMarked';
return item;
}
}
}

function ctMarkTreeIndex(treeIndex,index)
{
var item=ctGetObject('ctItemID' +(_ctTreeList[treeIndex].beginIndex+index)).parentNode;
if(!item)
return null;
if(item.id=="JSCookTreeItem")
item.id='JSCookTreeMarked';
return item;
}

function ctGetSelectedItem(treeIndex)
{
if(_ctTreeList[treeIndex].hideType <= 1)
return _ctTreeList[treeIndex].currentItem;
else
return _ctCurrentItem;
}

function ctDraw(id,tree,nodeProperties,prefix,hideType,expandLevel)
{
var obj=ctGetObject(id);

if(!nodeProperties)
nodeProperties=_ctNodeProperties;
if(!prefix)
prefix='';
if(!hideType)
hideType=0;
if(!expandLevel)
expandLevel=0;

_ctTreeList[_ctTreeList.length]=new ctTreeInfo(nodeProperties,prefix,hideType,expandLevel);
var treeIndex=_ctTreeList.length-1;

var beginIndex=_ctItemList.length;

_ctMenuInitStr='';
var str=ctDrawSub(tree,true,null,treeIndex,0,nodeProperties,prefix,'');
obj.innerHTML=str;
eval(_ctMenuInitStr);
_ctMenuInitStr='';

var endIndex=_ctItemList.length;

_ctTreeList[treeIndex].beginIndex=beginIndex;
_ctTreeList[treeIndex].endIndex=endIndex;

if(expandLevel)
ctExpandTree(id,expandLevel);

//document.write('<textarea wrap="off" rows="15" cols="80">'+str+'</textarea><br>');

return treeIndex;
}

function ctDrawSub(subMenu,isMain,id,treeIndex,level,nodeProperties,prefix,indent)
{
var lvl=level;
if(lvl > nodeProperties.themeLevel)
lvl=nodeProperties.themeLevel;

var str='<div class="'+prefix+'TreeLevel'+lvl+'"';
if(!isMain)
str += ' id="'+id+'"';
str += '>';

var strSub='';

var item;
var idSub;
var hasChild;

var classStr;
var connectSelect;
var childIndent;
var index;
var actionStr;
var itemID;
var markerStr;
var themeLevel=nodeProperties.themeLevel;

var i;
if(isMain)
i=0;
else
i=5;

var className=' class="'+prefix+'Row"';

for(; i < subMenu.length; ++i)
{
item=subMenu[i];
if(!item)
continue;

_ctItemList[_ctItemList.length]=item;
index=_ctItemList.length-1;

hasChild =(item.length > 5);
idSub=hasChild ? ctNewSubMenuID() : null;

str += '<table cellspacing="0" class="'+prefix+'Table">';

str += '<tr'+className;
if(hasChild)
str += ' id="JSCookTreeFolderClosed">';
else
str += ' id="JSCookTreeItem">';

classStr=prefix +(hasChild ? 'Folder' : 'Item');

itemID='ctItemID'+index;
markerStr=' id="'+itemID+'"';
_ctMenuInitStr += 'ctSetupItem(ctGetObject("'+itemID+'").parentNode,'+index+','+treeIndex+','+level+',' +(idSub ?('"'+idSub+'"') : 'null')+');';

str += '<td class="'+classStr+'Spacer"'+markerStr+'>'+indent;

 str += '</td>';

if(item[0]==_ctNoAction)
{
str += ctNoActionItem(item,prefix);
str += '</tr></table>';
continue;
}

actionStr=ctActionItem();

str += '<td valign="top" class="'+classStr+'Left"'+actionStr+'>';
if(hasChild)
{
connectSelect=ctHasNextItem(i,subMenu) ? 0 : 1;
lvl=ctGetPropertyLevel(level,nodeProperties.folderConnect);
str += '<span class="JSCookTreeFolderClosed">'+nodeProperties.folderConnect[lvl][connectSelect][0]+'</span>' +
   '<span class="JSCookTreeFolderOpen">'+nodeProperties.folderConnect[lvl][connectSelect][1]+'</span>';
}
else
{
connectSelect=ctHasNextItem(i,subMenu) ? 0 : 1;
lvl=ctGetPropertyLevel(level,nodeProperties.itemConnect);
str += nodeProperties.itemConnect[lvl][connectSelect];
}

if(item[0] != null && item[0] != _ctNoAction)
{
str += item[0];
}
else if(hasChild)
{
lvl=ctGetPropertyLevel(level,nodeProperties.folderLeft);
str += '<span class="JSCookTreeFolderClosed">'+nodeProperties.folderLeft[lvl][0]+'</span>' +
   '<span class="JSCookTreeFolderOpen">'+nodeProperties.folderLeft[lvl][1]+'</span>';
}
else
{
lvl=ctGetPropertyLevel(level,nodeProperties.itemLeft);
str += nodeProperties.itemLeft[lvl];
}
str += '</td>';

str += '<td class="'+classStr+'Text"'+actionStr+'>';

str += '<a';

if(item[2] != null)
{
str += ' href="'+item[2]+'"';
if(item[3])
str += ' target="'+item[3]+'"';
}

if(item[4] != null)
str += ' title="'+item[4]+'"';
else
str += ' title="'+item[1]+'"';

str += '>'+item[1]+'</a></td>';

str += '<td class="'+classStr+'Right"'+actionStr+'>';

if(hasChild)
{
lvl=ctGetPropertyLevel(level,nodeProperties.folderRight);
str += '<span class="JSCookTreeFolderClosed">'+nodeProperties.folderRight[lvl][0]+'</span>' +
   '<span class="JSCookTreeFolderOpen">'+nodeProperties.folderRight[lvl][1]+'</span>';
}
else
{
lvl=ctGetPropertyLevel(level,nodeProperties.itemRight);
str += nodeProperties.itemRight[lvl];
}
str += '</td>'
str += '</tr></table>';

if(hasChild)
{
childIndent=indent;
lvl=ctGetPropertyLevel(level,nodeProperties.spacer);
childIndent += nodeProperties.spacer[lvl][connectSelect];

str += ctDrawSub(item,false,idSub,treeIndex,level+1,nodeProperties,prefix,childIndent);
}
}

str += '</div>';

return str;
}


function ctItemMouseOver(item)
{
var treeItem=_ctItemList[item.ctIndex];
var isDefaultItem=ctIsDefaultItem(treeItem);

if(isDefaultItem)
{
var className=ctGetDefaultClassName(item);

if(item.className==className)
item.className=className+'Hover';
}
}


function ctItemMouseOut(item)
{
if(ctIsDefaultItem(_ctItemList[item.ctIndex]))
{
var className=ctGetDefaultClassName(item);

if(item.className ==(className+'Hover') ||
item.className ==(className+'Active'))
{
var tree=_ctTreeList[item.ctTreeIndex];
var currentItem =(tree.hideType <= 1) ? tree.currentItem : _ctCurrentItem;

if(item==currentItem)
item.className=className+'Selected';
else
item.className=className;
}
}
}

function ctItemMouseDown(item)
{
if(ctIsDefaultItem(_ctItemList[item.ctIndex]))
{
var className=ctGetDefaultClassName(item);

if(item.className ==(className+'Hover'))
item.className=className+'Active';
}
}


function ctItemMouseUp(item)
{
if(item.ctIdSub)
{
// toggle the submenu
var subMenu=ctGetObject(item.ctIdSub);
if(subMenu.style.display=='block')
{
ctCloseFolder(item);
}
else
{
ctOpenFolder(item);
}
}
ctSetSelectedItem(item);
}


function ctSetSelectedItem(item)
{
var tree=_ctTreeList[item.ctTreeIndex];
var hideType=tree.hideType;

var otherItem;

if(hideType <= 1)
otherItem=tree.currentItem;
else
otherItem=_ctCurrentItem;

if(otherItem != item)
{
ctLabelMenu(item);

if(otherItem)
{
if(ctIsDefaultItem(_ctItemList[otherItem.ctIndex]))
{
var className=ctGetDefaultClassName(otherItem);
if(otherItem.className ==(className+'Selected'))
otherItem.className=className;
}

// hide otherItem if required
if(hideType > 0 && otherItem)
ctHideMenu(otherItem,item);
}

if(hideType <= 1)
tree.currentItem=item;
else
_ctCurrentItem=item;

if(ctIsDefaultItem(_ctItemList[item.ctIndex]))
{
var className=ctGetDefaultClassName(item);
item.className=className+'Selected';
}
}
}

function ctIsFolderOpen(item)
{
if(item.id=='JSCookTreeFolderOpen')
return true;
return false;
}
function ctOpenFolder(item)
{
if(ctIsFolderOpen(item))
return;
if(item.ctIdSub)
{
var subMenu=ctGetObject(item.ctIdSub);
subMenu.style.display='block';

item.id='JSCookTreeFolderOpen';
}
}

function ctCloseFolder(item)
{
if(!ctIsFolderOpen(item))
return;

if(item.ctIdSub)
{
var subMenu=ctGetObject(item.ctIdSub);
var i;
for(i=0; i < subMenu.ctSubMenu.length; ++i)
ctCloseFolder(subMenu.ctSubMenu[i].ctParent);

var expandLevel=_ctTreeList[item.ctTreeIndex].expandLevel;
if(item.ctLevel < expandLevel)
return;
subMenu.style.display='none';

item.id='JSCookTreeFolderClosed';
}
}

function ctSetupItem(item,index,treeIndex,level,idSub)
{
if(!item.ctIndex)
{
item.ctIndex=index;
item.ctTreeIndex=treeIndex;
item.ctLevel=level;
item.ctIdSub=idSub;
}

var thisMenu=ctGetThisMenu(item);
ctSetupMenu(thisMenu,item,null,null);

if(idSub)
{
var subMenu=ctGetObject(idSub);
ctSetupMenu(subMenu,null,thisMenu,item);
}
}


function ctSetupMenu(thisMenu,thisItem,parentMenu,parentItem)
{
if(!thisMenu.ctSubMenu)
thisMenu.ctSubMenu=new Array();

if(parentItem)
{
if(!thisMenu.ctParent)
{

thisMenu.ctParent=parentItem;
thisMenu.ctLevel=parentItem.ctLevel+1;


parentMenu.ctSubMenu[parentMenu.ctSubMenu.length]=thisMenu;
}
}

if(thisItem)
{
if(!thisItem.ctMenu)
{
thisItem.ctMenu=thisMenu;

thisMenu.ctLevel=thisItem.ctLevel;

if(!thisMenu.ctItems)
thisMenu.ctItems=new Array();

thisMenu.ctItems[thisMenu.ctItems.length]=thisItem;
}
}
}

function ctLabelMenu(item)
{
var thisMenu=ctGetThisMenu(item);
while(thisMenu && thisMenu.ctLevel != 0)
{
thisMenu.ctCurrentItem=item;
thisMenu=ctGetThisMenu(thisMenu.ctParent);
}
}

function ctHideMenu(item,activeItem)
{
var subMenu;
while(item)
{
if(item.ctIdSub &&
(subMenu=ctGetObject(item.ctIdSub)).ctLevel &&
(subMenu.ctCurrentItem != activeItem))
{
ctCloseFolder(item);
}
item=ctGetThisMenu(item).ctParent;
}
}

function ctGetThisMenu(item)
{
var str=_ctTreeList[item.ctTreeIndex].prefix;
if(item.ctLevel==0)
str += 'TreeLevel0';
else
{
var themeLevel=_ctTreeList[item.ctTreeIndex].nodeProperties.themeLevel;
var lvl =(item.ctLevel < themeLevel) ? item.ctLevel : themeLevel;
str += 'TreeLevel'+lvl;
}
while(item)
{
if(item.className==str)
return item;
item=item.parentNode;
}
return null;
}

function ctHasNextItem(index,tree)
{
if(index <(tree.length-2) ||
(index ==(tree.length-2) && tree[index+1]))
return true;
else
return false;
}function ctGetDefaultClassName(item){var tree=_ctTreeList[item.ctTreeIndex];return tree.prefix+'Row';}function ctIsDefaultItem(item){if(item[0]==_ctNoAction)return false;return true;}function ctGetObject(id){if(document.all)return document.all[id];return document.getElementById(id);}function ctGetProperties(obj){var msg=obj+':\n';var i;for(i in obj)msg += i+'='+obj[i]+'; ';return msg;}