// JavaScript Document

function backToTop() {
	var x1 = x2 = x3 = 0;
	var y1 = y2 = y3 = 0;
	if (document.documentElement) {
		x1 = document.documentElement.scrollLeft || 0;
		y1 = document.documentElement.scrollTop || 0;
	}
	if (document.body) {
		x2 = document.body.scrollLeft || 0;
		y2 = document.body.scrollTop || 0;
	}
	x3 = window.scrollX || 0;
	y3 = window.scrollY || 0;
	var x = Math.max(x1, Math.max(x2, x3));
	var y = Math.max(y1, Math.max(y2, y3));
	window.scrollTo(Math.floor(x / 2), Math.floor(y / 2));
	if (x > 0 || y > 0) {
		window.setTimeout("backToTop()", 25);
	}
}

function Dir_Check(){

  location.href.match(/([^\/]+)(\/|\.html)$/);
  mySetCookie(RegExp.$1.replace("-","").replace("_",""),"o")

  objDiv=document.getElementsByTagName('ul');
  for(i=0; i < objDiv.length; i++){
    if(objDiv[i].id.match(/_d$/)){
      Id = objDiv[i].id.replace("_d","");
      Set_Display(Id,myGetCookie(Id));
    }
  }
}

function Dir_Open(Id,OC){
  Set_Display(Id,OC);
  mySetCookie(Id,OC);
}

function Set_Display(Id,OC){
  document.getElementById(Id + "_d").style.display = (OC == "o") ? "block"  : "none";
  document.getElementById(Id + "_o").style.display = (OC == "o") ? "inline" : "none";
  document.getElementById(Id + "_c").style.display = (OC == "o") ? "none"   : "inline";
}

function mySetCookie(myCookie,myValue){
  myItem = "@" + myCookie + "=" + escape(myValue) + ";";
  document.cookie =  myItem + "path=/;";
}

function myGetCookie(myCookie){
  myCookie = "@" + myCookie + "=";
  myValue = null;
  myStr = document.cookie + ";" ;
  myOfst = myStr.indexOf(myCookie);
  if(myOfst != -1){
    myStart = myOfst + myCookie.length;
    myEnd   = myStr.indexOf(";" , myStart);
    myValue = unescape(myStr.substring(myStart,myEnd));
  }
  return myValue;
}