//------------------//
//  クッキーの取得  //
//------------------//
function getCookie(key){
	tmp=document.cookie+";";
	tmp1=tmp.indexOf(key, 0);
	if(tmp1!=-1){
		tmp=tmp.substring(tmp1,tmp.length);
		start=tmp.indexOf("=",0)+1;
		end=tmp.indexOf(";",start);
		return(unescape(tmp.substring(start,end)));
	}
	return("");
}
//--------------------//
//  クッキーのセット  //
//--------------------//
function setCookie(key,val) {
	tmp=key+"="+escape(val)+";";
	tmp+="expires=Fri, 31-Dec-2010 23:59:59; ";
	document.cookie=tmp;
}
/*        クッキーに登録する汎用関数              */
/* 書式 : mySetCookie(クッキー名,値,有効期限日数) */
/* 戻り値 : なし(void)                            */
function mySetCookie(myCookie,myValue,myDay){
   myExp = new Date();
   myExp.setTime(myExp.getTime()+(myDay*24*60*60*1000));
   myItem = "@" + myCookie + "=" + escape(myValue) + ";";
   myExpires = "expires="+myExp.toGMTString();
   document.cookie =  myItem + myExpires;
}
/*        クッキーを取り込む汎用関数              */
/* 書式 : myGetCookie(クッキー名)                 */
/* 戻り値 : 値(string)  null:該当なし             */
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;
}

myNowDate=new Date();
var myDiff = 0;
var myTime = 0;
var myValue1 = 0;
var myValue2 = 0;
var myValue3 = 0;
var myValue4 = 0;
var myValue5 = 0;
var myValue6 = 0;
var Year = myNowDate.getFullYear();
var Month = myNowDate.getMonth() + 1;
var Day = myNowDate.getDate();
var Hour = myNowDate.getHours();
var Minute= myNowDate.getMinutes();
var Second = myNowDate.getSeconds();
//----------------------------//
//  クッキーから前回値を取得  //
//----------------------------//
myPrev = getCookie("Access");
if(myPrev != null){
	//------------------//
	//  指定時刻を設定  //
	//------------------//
	myValue1 = Number(myPrev.substring(0, 4));
	myValue2 = Number(myPrev.substring(4, 6)) - 1;
	myValue3 = Number(myPrev.substring(6, 8));
	myValue4 = Number(myPrev.substring(8, 10));
	myValue5 = Number(myPrev.substring(10, 12));
	myValue6 = Number(myPrev.substring(12, 14));
	myPrevDate=new Date(myValue1, myValue2, myValue3, myValue4, myValue5, myValue6);
	//----------------//
	//  日付の引き算  //
	//----------------//
	myDiff = myNowDate.getTime() - myPrevDate.getTime();
	myDiff /= 1000;
	//document.write(myDiff + " : " + myNowDate.getTime() + " - " + myPrevDate.getTime());
}
myNow = ((((Year*100+Month)*100+Day)*100+Hour)*100+Minute)*100+Second;
setCookie("Access", myNow, 1);
setCookie("Prev", myPrev, 1);
setCookie("Diff", myDiff, 1);