// ------------------------------------------------------------------
// hd_min
// 수정일 : 2011-07-26
// ------------------------------------------------------------------

// ------------------------------------------------------------------
// Global Variables
// ------------------------------------------------------------------
var ie = (window.navigator.appName=="Microsoft Internet Explorer")? true: false;
var chrome = (window.navigator.userAgent.match(/Chrome/i))? true : false;
var	opera = (window.navigator.userAgent.match(/Opera/i))? true : false;
var	firefox = (window.navigator.userAgent.match(/Firefox/i))? true : false;
var	safari = (window.navigator.userAgent.match(/Safari/i) && !window.navigator.userAgent.match(/Chrome/i))? true : false;


// ------------------------------------------------------------------
// FormCheck
// ------------------------------------------------------------------
function FormCheck(frm)
{
	if(!frm) return alert("FormCheck Error : parameter is null");
	if(typeof(frm)=="string"){
		var s = document.getElementById(frm);
		if(!s) s = eval("document."+frm);
		if(!s) return alert("FormCheck Error : Invalid Form id or name");
		this.frm = s;
	}
	else{
		this.frm = frm;
	}
	if(!this.frm.tagName || this.frm.tagName.toLowerCase()!="form")
		return alert("FormCheck Error : Not Form");

	this.check_stop = false;
	// ------------------------------------------
	// get element
	// ------------------------------------------
	this.element = function(name)
	{
		return this.frm.elements[name];
	}
	// ------------------------------------------
	// get value
	// ------------------------------------------
	this.get = function(name)
	{
		var el = this.element(name);
		if(el) return el.value;
		else return null;
	}
	// ------------------------------------------
	// set value
	// ------------------------------------------
	this.set = function(name, value)
	{
		var el = this.element(name);
		if(el){
			if(!el.tagName){
				for(var i=0; i<el.length; i++){
					this._set(el[i], value);
				}
			}
			else this._set(el, value);
		}
	}
	this._set = function(obj, v)
	{
		var tag = obj.tagName.toLowerCase();
		var type = obj.type;
		if(tag=="select")
		{
			for(var i=0; i<obj.options.length; i++){
				if(obj.options[i].value==v){
					obj.selectedIndex = i;
					break;
				}
			}
		}
		else if(tag=="input")
		{
			if(type=="checkbox" || type=="radio"){
				if(obj.value==v) obj.checked = true;
				else obj.checked = false;
			}
			else obj.value = v;
		}
		else obj.value = v;
	}
	// ------------------------------------------
	// check value
	// ------------------------------------------
	this.check = function(name, msg)
	{
		if(this.check_stop) return false;
		if(this.empty(name)){
			this.check_stop = true;
			if(msg) alert(msg);
			this.focus(name);
			return false;
		}
		return true;
	}

	// ------------------------------------------
	// check equal value
	// ------------------------------------------
	this.checkequal = function(name1, name2, msg)
	{
		if(this.check_stop) return;
		if(this.get(name1)!=this.get(name2)){
			this.check_stop = true;
			if(msg) alert(msg);
			this.focus(name1);
		}
	}
	// ------------------------------------------
	// empty
	// ------------------------------------------
	this.empty = function(name)
	{
		var el = this.element(name);
		if(!el) return false;
		var v = el.value;
		if(v) return false;
		if(v===0) return false;
		return true;
	}
	//  -----------------------------------------
	// focus
	// ------------------------------------------
	this.focus = function(name)
	{
		var el = this.element(name);
		if(!el) return false;
		try{el.focus();}catch(e){}
	}
	// ------------------------------------------
	// submit
	// ------------------------------------------
	this.submit = function()
	{
		if(this.check_stop) return;
		this.frm.submit();
	}
	// ------------------------------------------
	// reset
	// ------------------------------------------
	this.reset = function()
	{
		this.frm.reset();
	}
	// ------------------------------------------
	// action
	// ------------------------------------------
	this.action = function(url)
	{
		this.frm.action = url;
	}
	// ------------------------------------------
	// target
	// ------------------------------------------
	this.target = function(frame)
	{
		this.frm.target = frame;
	}
	// ------------------------------------------
	// method
	// ------------------------------------------
	this.method = function(type)
	{
		this.method.type = type;
	}
	// ------------------------------------------
	// serialize (현재필드명중복지원안함)
	// ------------------------------------------
	this.serialize = function(fields, except)
	{
		if(!except) except = false;
		if(!fields) fields = [];
		if(!is_arr(fields)) return;

		var coll = this.frm.elements;
		var re = "";
		for(var i=0; i<coll.length; i++){
			var item = coll.item(i);
			var type = item.getAttribute("type");
			var name = item.getAttribute("name");
			var value = item.getAttribute("value");
			if(type=="checkbox" && !item.checked) continue;
			if(type=="radio" && !item.checked) continue;
			if(except && in_arr(fields, name)) continue;
			if(!except && fields.length && !in_arr(fields, name)) continue;
			if(item.tagName.toLowerCase()=="select"){
				var option = item.options[item.selectedIndex];
				value = option.value;
			}
			if(re) re +="&";
			if(value || value==0) value = encodeURIComponent(value);
			if(!value) value ="";
			re += name+"="+value;
		}
		return re;
	}
}
// ------------------------------------------------------------------


// ----------------------------------------------
// is_arr (배열인지 아닌지)
// ----------------------------------------------
function is_arr(v)
{
	if(!v) return false;
	if(typeof(v)!="object") return false;
	if( (v instanceof Array) || (v.concat && v.reverse && v.unshift) ) return true;
	else return false;
}

// ----------------------------------------------
// in_arr (v가 arr에 속해있는지)
// ----------------------------------------------
function in_arr(arr, v)
{
	if(!arr) return false;
	for(var i=0; i<arr.length; i++){
		if(arr[i]==v) return true;
	}
	return false;
}


// ----------------------------------------------
// set event
// ----------------------------------------------
function set_event(obj, eventType, f)
{
	if(ie) obj.attachEvent("on"+eventType, f);
	else obj.addEventListener(eventType, f, false);
}

// ----------------------------------------------
// set ready
// ----------------------------------------------
function set_ready(f)
{
	if(document.readyState=="complete") return f();
	set_event(window, "load", function(e){
		f();
	});
}

// ----------------------------------------------
// set focus
// ----------------------------------------------
function set_focus(obj_id)
{
	set_ready(function(){
		window.setTimeout(function(){
			try{
				var obj = document.getElementById(obj_id);
				obj.focus();
				if(obj.value && (obj.type=="text" || obj.tagName=="textarea") ){
					obj.select();
					if(ie){
						var rng = obj.createTextRange();
						rng.collapse(false);
						rng.select();
					}
					else{
						var len = obj.value.length;
						obj.setSelectionRange(len,len);
					}
				}
			}catch(e){}
		},50);
	});
}

// ----------------------------------------------
// display toggle
// ----------------------------------------------
function toggle(obj_id)
{
	var obj = null;
	if(typeof(obj_id)=="string") obj = document.getElementById(obj_id);
	else obj = obj_id;
	if(!obj) return;
	try{
		var v = (obj.style.display=="none")? "" : "none";
		obj.style.display = v;
	}catch(e){}
}

// ----------------------------------------------
// get scrollHeight
// ----------------------------------------------
function get_scrollHeight(win)
{
	if(!win) win = window;
	var quirks = (win.document.compatMode=="CSS1Compat")? false : true;
	var body = win.document.body;
	var root = win.document.documentElement;
	if(ie){
		if(quirks) return Math.max(body.scrollHeight, root.scrollHeight);
		else return root.scrollHeight;
	}
	else return body.scrollHeight;
}

// ----------------------------------------------
// get height
// ----------------------------------------------
function get_documentHeight(win)
{
	if(!win) win = window;
	var quirks = (win.document.compatMode=="CSS1Compat")? false : true;
	var body = win.document.body;
	var root = win.document.documentElement;
	if(ie) return body.scrollHeight;
	else if(firefox) return body.offsetHeight;
	else if(opera) return root.scrollHeight;
	else return body.offsetHeight;
}

// ----------------------------------------------
// get scrollTop
// ----------------------------------------------
function get_scrollTop(win)
{
	if(!win) win = window;
	var quirks = (win.document.compatMode=="CSS1Compat")? false : true;
	var body = win.document.body;
	var root = win.document.documentElement;
	if(ie && !quirks) return root.scrollTop;
	else return body.scrollTop;
}

// ----------------------------------------------
// set scrollTop
// ----------------------------------------------
function set_scrollTop(pos, win)
{
	if(!win) win = window;
	var quirks = (win.document.compatMode=="CSS1Compat")? false : true;
	var body = win.document.body;
	var root = win.document.documentElement;
	if(ie && !quirks) root.scrollTop = pos;
	else body.scrollTop = pos;
}

// ----------------------------------------------
// auto_fit_iframe
// ----------------------------------------------
function auto_fit_iframe(minHeight, addHeight)
{
	set_ready(function(){
		window.setTimeout(function(){
			fit_iframe(minHeight, addHeight);
		}, 100);
	});
}


// ----------------------------------------------
// fit iframe
// ----------------------------------------------
function fit_iframe(minHeight, addHeight)
{
	if(!minHeight) minHeight = 10;
	if(!addHeight) addHeight = 20;
	if(!window.frameElement) return;

	// -- save parent info -- //
	var psh = get_scrollHeight(window.parent);
	var pst = get_scrollTop(window.parent);

	// -- chrome & safari (shrink) -- //
	if(chrome || safari)
		window.frameElement.style.height = minHeight+"px";

	// -- fit iframe -- //
	var h = get_documentHeight(window)+addHeight;
	if(h<minHeight) h = minHeight;
	window.frameElement.style.height = h+"px";

	// -- scroll re-position -- //
	var nsh = get_scrollHeight(window.parent);

	if(psh <= nsh){
		set_scrollTop(pst, window.parent);
	}
	else{
		var free = psh - pst;
		var dim = psh - nsh;
		if(free >= dim){
			set_scrollTop(pst, window.parent);
		}
		else{
			var np = pst + dim;
			if(np<0) np = 0;
			set_scrollTop(np, window.parent);
		}
	}
}

// ----------------------------------------------
// enter_submit (onkeypress)
// ----------------------------------------------
function enter_submit(e)
{
	var key = null;
	var obj = null;
	if(ie){
		key = window.event.keyCode;
		obj = window.event.srcElement;
	}
	else{
		key = e.which;
		obj = e.target;
	}
	if(key==13){
		try{
			obj.form.submit();
		}
		catch(e){}
	}
}

// ------------------------------------------------------------------
// copy_n_paste
// ------------------------------------------------------------------
function copy_n_paste(copy_id, paste_id)
{
	var src = document.getElementById(copy_id);
	var dst = document.getElementById(paste_id);
	if(!src || !dst) return;
	for(var node=src.firstChild; node; node=node.nextSibling)
		dst.appendChild(node.cloneNode(true));
}

// ------------------------------------------------------------------
// find_upto_remove
// ------------------------------------------------------------------
function find_upto_rem(obj, tag_name, cls_name)
{
	for(var node=obj.parentNode; node; node=node.parentNode)
	{	
		var tagname = (node.tagName)? node.tagName.toLowerCase() : "";
		if(tagname==tag_name && node.className==cls_name){
			node.parentNode.removeChild(node);
			break;
		}
	}
}

// ----------------------------------------------
// cmd open scroll window
// ----------------------------------------------
function open_swindow(path, win_name, width, height, center)
{
	if(!width) width = 600;
	if(!height) height = 600;
	var win = "win_"+win_name;
	if(window[win]){
		try{
			window[win].close();
		}catch(e){}
	}
	
	var pos = "";
	if(center){
		var mw = window.screen.availWidth;
		var mh = window.screen.availHeight;
		var left = parseInt((mw - width)/2);
		var top = parseInt((mh - height)/2)-20;
		if(left<0) left = 0;
		if(top<0) top = 0;
		pos = ",left="+left+",top="+top;
	}
	window[win] = window.open(path, win_name, "width="+width+",height="+height+",resizable=yes,scrollbars=yes"+pos);
}

// ----------------------------------------------
// 전체 체크
// ----------------------------------------------
function check_all(obj, field)
{
	var arr = document.getElementsByName(field);
	if(!arr) return;
	for(var i=0; i<arr.length; i++){
		arr[i].checked = obj.checked;
	}
}

// ----------------------------------------------
// 텍스트영역 날짜 입력 처리
// ----------------------------------------------
function ta_add_date(obj_id, msg, name)
{
	if(!name) name = "---------";
	else name = "["+name+"] ";

	var obj = document.getElementById(obj_id);
	if(!obj) return;
	
	var d = new Date();
	var year = d.getFullYear();
	var month = d.getMonth()+1;
	var day = d.getDate();
	var weeks = ["일", "월", "화", "수", "목", "금", "토"];
	var weekday = weeks[d.getDay()];
	var hour = d.getHours();
	var minute = d.getMinutes();
	var str = "//----- "+year+"년 "+month+"월 "+day+"일 ("+hour+"시 "+minute+"분) "+weekday+"요일 "+name+"------------------------------------------------\r\n";
	if(msg==1) str+="처리완료\r\n";
	obj.focus();
	if(obj.value) str = "\r\n\r\n"+str;
	obj.value += str;
	set_focus(obj_id);
}

// ----------------------------------------------
// 텍스트 영역 사이즈 조정
// ----------------------------------------------
function ta_add_size(obj_id)
{
	var obj = document.getElementById(obj_id);
	if(!obj) return;

	var h = parseInt(obj.style.height);
	if(h <=200)
		obj.style.height = 500+"px";
	else if(h <=500)
		obj.style.height = 1000+"px";
	else
		obj.style.height = 200+"px";
	fit_iframe(1);
}