// -------------- NEW TREE ---------------

var GimgCornerPlus = new Image;
GimgCornerPlus.src = 'images/cornerplus.gif';
var GimgCornerMinus = new Image;
GimgCornerMinus.src = 'images/cornerminus.gif';
var canSwitch = false;
if (parseInt(navigator.appVersion) >= 5 || navigator.appVersion.indexOf["MSIE 5"] != -1)
canSwitch = true;

function switchOnOffie(treeName, image1, levelID, isLast){
   if(canSwitch){
      var subitems ;
      var imgRoot ;
 	subitems = document.getElementById(treeName+'L'+levelID);
	imgRoot  = document.getElementById(treeName+'pmRoot');
      var clName=subitems.className;
      newName=clName.substring(0, clName.length-1);
      var visible= (subitems.style.display!='none');
      var imgPlusLast = 'cornerplus.gif';
      var imgPlus = 'lineplus.gif';
      if (isLast) imgPlus = imgPlusLast;
      var imgMinusLast = 'cornerminus.gif';
      var imgMinus = 'lineminus.gif';
      if (isLast) imgPlus = imgMinusLast;
      var isFirst = image1==imgRoot;
      if (isLast) {
	 imgPlus = imgPlusLast;
	 imgMinus = imgMinusLast;
      }
      if (isFirst && ! isLast) {
	 imgPlus = 'plus.gif';
	 imgMinus = 'minus.gif';
      }
      if(visible){
	 clName = newName+'u';
	 newImage = 'images/'+imgPlus;
	 subitems.style.display='none';
      }else{
	 clName = newName+'v';
	 newImage = 'images/'+imgMinus;
	 subitems.style.display='block';
      }

      image1.src = newImage;
   };

};