// $Id: func.js,v 1.3 2005/09/15 07:17:13 max Exp $
isDOM=document.getElementById?true:false
isOpera=isOpera5=window.opera && isDOM
isOpera6=isOpera && window.print
isOpera7=isOpera && document.readyState
isMSIE=isIE=document.all && document.all.item && !isOpera
isStrict=document.compatMode=='CSS1Compat'
isNN=isNC=navigator.appName=="Netscape"
isNN4=isNC4=isNN && !isDOM
isMozilla=isNN6=isNN && isDOM
isSafari=(navigator.userAgent.indexOf("Safari") >= 0)

isMac = (navigator.appVersion.indexOf("Mac") != -1);
isMacPPC = (isMac && (navigator.appVersion.indexOf("PPC") != -1 || navigator.appVersion.indexOf("PowerPC") != -1));

var imgPlus = new Image;
var imgPlusChild = new Image;
var imgMinusChild = new Image;
var imgMinus = new Image;
var imgLine = new Image;
var imgTail = new Image;
var imgExp = new Image;
var imgTailExp = new Image;

imgPlus.src = skinWebPath+"/"+fcConfig.img_skin+"/tree_item.gif";
imgPlusChild.src = skinWebPath+"/"+fcConfig.img_skin+"/tree_item_child_plus.gif";
imgMinus.src = skinWebPath+"/"+fcConfig.img_skin+"/tree_item_current.gif";
imgMinusChild.src = skinWebPath+"/"+fcConfig.img_skin+"/tree_item_child_minus.gif";
imgLine.src = skinWebPath+"/"+fcConfig.img_skin+"/tree_subdir_line.gif";
imgTail.src = skinWebPath+"/"+fcConfig.img_skin+"/tree_subdir_line_tail.gif";
imgExp.src = skinWebPath+"/"+fcConfig.img_skin+"/tree_subdir_line_exp.gif";
imgTailExp.src = skinWebPath+"/"+fcConfig.img_skin+"/tree_subdir_line_tail_exp.gif";

function SwitchTreeItem(cat, is_last,par) {
	var obj = document.getElementById(catPrefix+cat);
    if (!obj)
		return false;
    
    var minus_flag = (obj.style.display == "none");
	obj.style.display = (minus_flag ? (isMSIE ? "block" : "") : "none");
    
    obj = document.getElementById(catPrefix+cat+'par_table');   
   
    if (obj){
    var minus_flag = (obj.style.display == "none");
    obj.style.display = (minus_flag ? (isMSIE ? "block" : "") : "none");
	}
    if (par){ 
    obj = document.getElementById(catPrefix+cat+'imgChild');
    if (obj)
    obj.src = (minus_flag?imgMinusChild.src:imgPlusChild.src);
}else {
    obj = document.getElementById(catPrefix+cat+'img');
	
    if (obj)
	obj.src = (minus_flag?imgMinus.src:imgPlus.src);
    }
    
    obj = document.getElementById(catPrefix+cat+'border');
   
    if (!obj)
        return false; 
 
    obj.style.display = (minus_flag ? "none" : (isMSIE ? "block" : ""));
    
}