var __w = window;
	var __d = __w.document;
	// handleChildren -	A method to handle child selection/deselection
	// in the category tree.
	// Inputs:
	//	s - The sibling of the DOM node you clicked.	
	//	m - 0 or 2 (deselection or selection)
	//
	// Outputs:
	// None
	
	function handleChildren(s,m) {
	    var e;
	    try {
		var n = s.getElementsByTagName("DIV");
	    } catch(e) { 
		return; 
	    }
	    for(var i=0;i<n.length;i++) {
		var d=n[i];
		var h = d.innerHTML.toLowerCase();
		if (h.indexOf("<a") == 0) {
		    if(d.childNodes.length!=0) {
			if(d.childNodes.length!=3) {
			    d=d.childNodes[0];
			}
			var e=d.childNodes[2];
			if(m==2) {
			    e.className="fullbox";
			} else {
			    e.className="chkbox";
			}
			var c=d.nextSibling;
			if(c) {
			    handleChildren(c,m);
			}
		    }
		}
	    }	
	}	
	
	// computeChildren - A method to discover the current status of a given 
	// category node's children. 
	// Inputs:
	//	n - DOM node you are inquiring about.
	//	m - 0 for category tree, 1 for search tree
	//	l - Usually 0, but in the case of VO subnodes (org,site)
	//		it is set to 1.
	//	
	// 	Outputs:
	// 	2,1,0 depending on child states (fully checked, partially checked,
	//	or unchecked)		
	//
	// 	Note: Part of this code is being generated via PHP, so its function 
	// 	changes on a SITE basis.
	
	function computeChildren(n,m,l) {
		if(!n.nextSibling) { return; }
		var nd = n.nextSibling.getElementsByTagName("DIV");
		var t = 0;var c=0;var nl=0;
		for(var x=0; x<nd.length; x++) {
			if((m == 1)&&(l == 0)){nl=1;}
			if(nd[x].className=="parentItem") { 
				c++; t+=computeChildren(nd[x],m,nl);
			}
						else if(nd[x].className =="item") { 				var cl = nd[x].childNodes[2].className;
				if(cl=="fullbox"){t+=2;}
				else if(cl=="chkbox"){t+=0;}
				else {t++;}
				c++;
			}
			if((c==_search_count)&&(m==1)&&(l==0)){ break; }
		}
		if(t==0) {return 0;}
		else if(t==(c*2)){return 2;}
		return 1;
	}
	
	function handleParent(n,m,w,l) {
		var p=n.parentNode.previousSibling; var s="";
		if(!p) {
		    return;
		}
		
		var e=p.childNodes[2];
		var t = computeChildren(p,w,l);
		if(t==0) {
		    s="chkbox";
		} else if(t==1) {
		    s="halfbox";
		} else {
		    s="fullbox";
		}
		
		if(e) {
		    e.className=s; 
		}
		if(!(p.id=="items")) {
		    handleParent(p,m,w,0);
		}
	}
	
	function handleClickEvent(n,u,r) {
	  /* n: is node?
	     u: is uuid?
	     r: is 
	   */
		var s=""; var d="";
		if(n.className== "chkbox") { n.className="fullbox"; s=u; m=2; }
		else { n.className="chkbox"; d=u; m=0; }
		handleChildren(n.parentNode.nextSibling,m);
		handleParent(n.parentNode,m,0,0);
		if (r==0) { doCatEvent(s,d); }
	}
	
	function handleClickEventSearch(node,which,position)
	{
		if(node.className == "chkbox")
		{
			node.className = "fullbox";
			method = 2;
		}
		else
		{
			node.className = "chkbox";
			method = 0;
		}
		switch(which)
		{
			case 0:
						if(method == 2) { _selections[position] = 255; }
						else { _selections[position] = 0; }
						break;
			case 1:	
					if(method == 2) {
						if(_selections[position] < 7) {
							_selections[position] += 1;
						}
						else {
							_selections[position] = 255;
						}
					}
					else {
						if(_selections[position] == 255) {
							_selections[position] = 6;
						}
						else {
							_selections[position] -= 1;
						}							
					}
					break;
			case 2:
						if(method == 2)
						{
							if(_selections[position] < 5)
							{
								_selections[position] += 2;
							}
							else
							{
								_selections[position] = 255;
							}
						}
						else
						{
							if(_selections[position] == 255)
							{
								_selections[position] = 5;
							}
							else
							{
								_selections[position] -= 2;
							}						
						}
						break;
			case 3:
						if(method == 2)
						{
							if(_selections[position] < 3)
							{
								_selections[position] += 4;
							}
							else
							{
								_selections[position] = 255;
							}
						}
						else
						{
							if(_selections[position] == 255)
							{
								_selections[position] = 3;
							}
							else
							{
								_selections[position] -= 4;
							}							
						}
						break;
		
		}
		var selected = 0;
		var select = 0;
		if(which == -1)
		{
			if(method== 2) { selected = "255";} else {selected = "0";}
			for(var x=0; x <_search_count; x++) { _selections[x] = selected; }
			select = _search_uuids.join(",");
			selected = _selections.join(",");
		}
		else
		{
			select = _search_uuids[position];
			selected = _selections[position];
		}
		if(which < 1)
		{
			handleChildren(node.parentNode.nextSibling,method);
		}
		if(which > -1)
		{
			handleParent(node.parentNode,method,1,which);
		}
		var e;
		try {
			window.frames["welcome"].updateCaption("Fetching Results...");
		}
		catch(e) {}
                doSearchEvent(select, selected);
//                doCatEvent(selected);
//                window.frames["welcome"].location="search/searchtree.php?select="+select+"&selected="+selected;	
	}
	
function toggleNode(n)
{
	if (n.className == "empty") { return; }
	var d = n.parentNode.nextSibling;
	if(d.style.display == "none")	{
		d.style.display = "block";
		n.className = "open";
	} else {
		d.style.display = "none";	
		n.className = "closed";
	}
} 
	
function addUuid(uuid)
{
	if(_search_uuids.length < 5) {
		_search_uuids.push("");
	}
	for(var i=(_search_count-1); i>0; i--) {
		_search_uuids[i] = _search_uuids[i-1];			
	}			
	_search_uuids[0] = uuid;	
}

function setUuid(which,uuid)
{
	_search_uuids[which] = uuid;
}

function checkRoot()
{
	var x = 0;
	for(var i=0; i<_selections.length; i++) {
		x+= _selections[i];
	}
	var t = __d.getElementById("items2").firstChild;	
	if(x == (255 * _selections.length)) {
		t.childNodes[2].className="fullbox";
	} else if(x == 0) {
		t.childNodes[2].className="chkbox";
	} else {
		t.childNodes[2].className="halfbox";
	}

}

/*
*	setStatus will be used to allow an item to unclip/toggle.
*	Parameters: which tree value (0-5), mode (0-1) - 1 being open
*/
function setStatus(w,o)
{
	var t = __d.getElementById("items2");
	var n=t.firstChild.nextSibling.childNodes[w];
	// If the div doesn't have children,
	// don't bother doing a toggle.
	if (n.className == "item") {return;}
	if(o==1) {
		n.childNodes[0].className = "open";
		n.nextSibling.style.display="block";
	} else {
		n.childNodes[0].className = "closed";
		n.nextSibling.style.display="none";
	}
}


/*
* setNode should be used to change the text/checkbox configuration of a given
* member of the 
*
*/

function setNode(w, text, value)
{
	_searches[w] = text;
	_selections[w] = value;
	var vclass="fullbox";
	if(value == 255) { vclass="fullbox"; }
	else if(value == 0) { vclass="chkbox"; }
	else { vclass="halfbox"; }	
	var t=__d.getElementById("items2");
	var node=t.firstChild.nextSibling.childNodes[w];

	node.style.display="block";
	node.childNodes[1].innerHTML = text
	node.childNodes[2].className = vclass;
	
}	

/*
* addNode used to be for the purpose of adding a node, and moving all state 
* from the previous one.
* I want this to purely handle adding an additional node, 
* and setting it's value.
*/

 function isUpperCase(str, pos)
 {
  try
  {
   var x = str.charCodeAt(pos);
   if((x >= 48) && (x <= 57)) { return 0.5; } // support for numbers
   if((x >= 65) && (x <= 90)) { return 0.5; }
   if(x== 32) { return 1.5; }
   else if ((x == 109) || (x == 119) || (x==45)) { return 1.5; }
   return 0;
  }
  catch (e)
  {
   alert("SEND IN THE CLONE! "+str[pos]);
  }
 };

 function truncateString(str, maxlen)
 {
  if (str == "") return "";

  var length = str.length;
  if(length < 10) return str;
  var length2 = 0;

  var fin_i = 0;
  var x;
  var i;
  for(i=0; i < length-1; i++)
  {
   x = isUpperCase(str,i);
   length2 += (x+1.0);
   if(length2 <= maxlen)
   {
    fin_i = i;
   }
  }
  if((length-2) == fin_i) { return str; }

  switch(str[fin_i])
  {
   case ",":
   case ".":
   case "?":
   case "/":
   case "\\":
   case ";":
   case ":":
   case " ":
   case "'": fin_i -=1;
             break;
   default:  break;
  }
  return str.substring(0,fin_i-3)+"...";
 }

function addNode(text,value)
{
	var x = window.document.getElementById("collections");
	if(_search_count == 0) { 
	  x.firstChild.style.display="block"; 
	}
	var nodes =	x.firstChild;
	var top = nodes.childNodes[0];
	nodes = top.nextSibling;

	var vclass="fullbox";
	if(value == 255) { vclass="fullbox"; }
	else if(value == 0) { vclass="chkbox"; }
	else { vclass="halfbox"; }
	if(_search_count == 0) {
 		top.style.display="block";
		nodes.style.display="block";
		_searches.push(text);		
		_selections.push(value);
		setNode(0,text,value);
		_search_count++;
	} else {
		top.childNodes[2].className= "halfbox";
		if(_search_count < 5) {
			_searches.push("");
			_selections.push(255);
			_search_count++;
		}
		for(var i=(_search_count-1); i>0; i--) {
			setNode(i, _searches[i-1], 0);
	
		}
		setNode(0, text, value);
	}	

}	

var _searches = [];
var _selections = [];	
var _search_uuids = [];
var _search_count = 0;