function retNull(){
	 null;
}
function SetCookie(name,value){
  var dobj = new Date();
  dobj.setTime( dobj.getTime() + 24 * 60 * 60 * ckDays * 1);
  var expiryDate = dobj.toGMTString();
  document.cookie = name + '=' + escape(value)+ ';expires=' + expiryDate + ';path=' + ckPath;
}



function GetCookie (name){
  var arg  = name + "=";
  var alen = arg.length;
  var clen = document.cookie.length;
  var i = 0;
  while (i < clen){
    var j = i + alen;
    if (document.cookie.substring(i, j) == arg)
    return getCookieVal (j);
    i = document.cookie.indexOf(" ", i) + 1;
    if (i == 0) break;
  }
   return null;
}


function getCookieVal (offset){
  var endstr = document.cookie.indexOf (";", offset);
  if (endstr == -1)
  endstr = document.cookie.length;
  return unescape(document.cookie.substring(offset,endstr));
}

function DeleteCookie(name){
  if (GetCookie(name)) {
    document.cookie = name + '=' +
    '; expires=Thu, 01-Jan-70 00:00:01 GMT;path='+ckPath;
  }
}



function changeCursor(c){
	document.body.style.cursor = c;
}


/*-------------------------------------------------
	�¡FLASHŠÖ˜A
	------------------------------------------------*/
function thisMovie(movieName) {
	if (navigator.appName.indexOf("Microsoft") != -1) {
		return window[movieName];
		//return document.getElementsById[movieName];
	} else {
		return document[movieName];
		//return document.getElementsById[movieName]; 
	}
}


function changeSkin(str){
	//alert(str);
	setActiveStyleSheet(str); 
}



function contactUs(){
	location.href="mailto:"+"in"+"fo"+"@zuien-takeoka.com";
}

function rollover(){
	//alert("test3");
	var targetClassName = "hoverImg";
	var suffix = "_ov";

	var overReg = new RegExp("^(.+)(\\.[a-z]+)$");
	var outReg = new RegExp("^(.+)" + suffix + "(\\.[a-z]+)$");

	var preload = new Array();
	var images = document.getElementsByTagName("img");

	for (var i = 0, il = images.length; i < il; i++) {
		var classStr = images[i].getAttribute("class") || images[i].className;
		var classNames = classStr.split(/\s+/);
		for(var j = 0, cl = classNames.length; j < cl; j++){
			if(classNames[j] == targetClassName){
				//preload
				preload[i] = new Image();
				preload[i].src = images[i].getAttribute("src").replace(overReg, "$1" + suffix + "$2");
				//mouseover
				images[i].onmouseover = function() {
					this.src = this.getAttribute("src").replace(overReg, "$1" + suffix + "$2");
				}
				//mouseout
				images[i].onmouseout = function() {
					this.src = this.getAttribute("src").replace(outReg, "$1$2");
				}
			}
		}
	}
}

window.onload=function(){
	rollover();
	setDisplay();
}
function setDisplay(){
	var s = "n";
	s += "one";
	var e = document.getElementById("expText");
	e.style.display = s;
}