/* 앞뒤 공백제거 */
function trim(str) 
{	
	var start = 0, end = str.length;
	while (end > start) {
		ch = str.charAt(end-1);
		if (ch != ' ' && ch != '\t' && ch != '\\n' && ch != '\\r')
			break;
		end--;
	}	
	while (start < end) {
		ch = str.charAt(start);
		if (ch != ' ' && ch != '\t' && ch != '\\n' && ch != '\\r')
			break;
		start++;
	}
	return str.substr(start, end-start);
}
/* 글자 체크 */
function textChk(strValue)
{
	var iTotal = 0;
	for (var i = 0 ; i < strValue.length ; i++)
	{
		var word = escape(strValue.charAt(i));

		if (word.length > 3)
		{
			iTotal += 2;
		}
		else
		{
			iTotal += 1;
		}
	}

	return iTotal;
}

/* 게시판 백그라운드 색상 */
function transListColor(obj) {
    if (obj.className == "oddlist") obj.className = "onoddlist";
    else if(obj.className == "evenlist") obj.className = "onevenlist";
    else if (obj.className == "onoddlist") obj.className = "oddlist";
    else if (obj.className == "onevenlist") obj.className = "evenlist";
}

/* MAIN 게시판 백그라운드 색상 */
function mainTransListColor(obj) {
    if (obj.className == "mainoddlist") obj.className = "mainonoddlist";
    else if (obj.className == "mainonoddlist") obj.className = "mainoddlist";
}

/* 메뉴 스크립트 */
var oldMenu="";
function restore_img_src(name, nsdoc) //대체 이미지 띄움
{
  var img = eval((navigator.appName.indexOf('Netscape', 0) != -1) ? nsdoc+'.'+name : 'document.all.'+name);
  if (name == '')
	return;
  if (img && img.altsrc) {
	img.src    = img.altsrc;
	img.altsrc = null;
  } 
}
function change_img_src(name, nsdoc, rpath, preload) //이미지 change
{ 
  var img = eval((navigator.appName.indexOf('Netscape', 0) != -1) ? nsdoc+'.'+name : 'document.all.'+name);
  if (name == '')
	return;
  if (img) {
	img.altsrc = img.src;
	img.src    = rpath;
  } 
}
function showmenu(menuID)
{
	if(oldMenu != "")
	{
		document.all["submenu"+oldMenu].style.display = 'none';
		restore_img_src("menu"+oldMenu, "document");
	}
	if(document.all["menu"+menuID].style.display == 'block')
	{
		document.all["submenu"+menuID].style.display = 'none';
		restore_img_src("menu"+menuID, "document");
	}
	else
	{
		document.all["submenu"+menuID].style.display = 'block';
		change_img_src("menu"+menuID, "document", "/images/menu/menu_"+ menuID +"_on.gif", true);
	}
	oldMenu = menuID;
}

function setMenu(menuID)
{
	document.all["submenu"+menuID].style.display = 'block';
	change_img_src("menu"+menuID, "document", "/images/menu/menu_"+ menuID +"_on.gif", true);
}

function defaultMenu(menuID)
{
	document.all["submenu"+menuID].style.display = 'none';
	change_img_src("menu"+menuID, "document", "/images/menu/menu_"+ menuID +"_off.gif", true);
	oldMenu = "";
}
/* 메뉴 스크립트 끝 */