var stmnLEFT = 4; // 스크롤메뉴의 좌측 위치 
var stmnGAP1 = 0; // 페이지 헤더부분의 여백 
var stmnGAP2 = 0; // 스크롤시 브라우저 상단과 약간 띄움. 필요없으면 0으로 세팅 
var stmnBASE = 0; // 스크롤메뉴 초기 시작위치 (아무렇게나 해도 상관은 없지만 stmnGAP1과 약간 차이를 주는게 보기 좋음) 
var stmnActivateSpeed = 0; // 움직임을 감지하는 속도 (숫자가 클수록 늦게 알아차림) 
var stmnScrollSpeed = 0; // 스크롤되는 속도 (클수록 늦게 움직임) 

var stmnTimer; 

function ReadCookie(name) { 
	var label = name + "="; 
	var labelLen = label.length; 
	var cLen = document.cookie.length; 
	var i = 0; 

	while (i < cLen) { 
		var j = i + labelLen; 

		if (document.cookie.substring(i, j) == label) { 
			var cEnd = document.cookie.indexOf(";", j); 
			if (cEnd == -1) cEnd = document.cookie.length; 
			return unescape(document.cookie.substring(j, cEnd)); 
		} 
	i++; 
	} 
	return ""; 
} 

function SaveCookie(name, value, expire) { 
	var eDate = new Date(); 
	eDate.setDate(eDate.getDate() + expire); 
	document.cookie = name + "=" + value + "; expires=" +  eDate.toGMTString()+ "; path=/"; 
} 

function RefreshStaticMenu() { 
	var stmnStartPoint, stmnEndPoint, stmnRefreshTimer; 
	stmnStartPoint = parseInt(STATICMENU.style.top, 10); 
	stmnEndPoint = document.documentElement .scrollTop + stmnGAP2; 
	stmnLimit = parseInt(window.document.documentElement .scrollHeight) - parseInt(STATICMENU.offsetHeight); 
	
	if (stmnEndPoint > stmnLimit) stmnEndPoint = stmnLimit; 
	if (stmnEndPoint < stmnGAP1) stmnEndPoint = stmnGAP1; 
	
	stmnRefreshTimer = stmnActivateSpeed; 

	if ( stmnStartPoint != stmnEndPoint ) { 
		stmnScrollAmount = Math.ceil( Math.abs( stmnEndPoint - stmnStartPoint ) / 15 ); 
		STATICMENU.style.top = parseInt(STATICMENU.style.top, 10) + ( ( stmnEndPoint<stmnStartPoint ) ? -stmnScrollAmount : stmnScrollAmount ); 
		stmnRefreshTimer = stmnScrollSpeed; 
	} 

	stmnTimer = setTimeout ("RefreshStaticMenu();", stmnRefreshTimer); 
} 

function ToggleAnimate() { 
	if (!ANIMATE.checked) { 
		RefreshStaticMenu(); 
		SaveCookie("ANIMATE", "true", 300); 
	} else { 
		clearTimeout(stmnTimer); 
		STATICMENU.style.top = stmnGAP1; 
		SaveCookie("ANIMATE", "false", 300); 
	} 
} 

function InitializeStaticMenu() { 
	STATICMENU.style.left = stmnLEFT; 
	if (ReadCookie("ANIMATE") == "false") { 
		ANIMATE.checked = true; 
		STATICMENU.style.top = document.documentElement .scrollTop + stmnGAP1; 
	} else { 
		ANIMATE.checked = false; 
		STATICMENU.style.top = document.documentElement .scrollTop + stmnBASE; 
		RefreshStaticMenu(); 
	} 
}