/* 빈칸 체크 */
function emptyTextBox(elementId, str, focusTF) {
    var obj = document.getElementById(elementId);
    if (obj) {
        if (strLength(obj.value) == 0) {
            alert(str);
            if (focusTF == "T")
            { obj.focus(); }
            return false;
        }
    }
    return true;
}

/* 스페이스를 없엔 문자열 길이 리턴 */
function strLength(checkStr) {
    var str = checkStr
    var FPoint = str.indexOf(' ');
    while (FPoint != -1) {
        str = str.replace(' ', '');
        FPoint = str.indexOf(' ');
    }
    return (str.length);
}

/* 숫자와 영문만 입력가능하게 */
function A_Z(obj) {
    var eng = /^([a-zA-Z0-9]{1,20})$/
    if (eng.test(obj.value) == false) {
        alert('영문과 숫자로만 입력해주세요.')
        obj.focus();
        return false;
    } else {
        return true;
    }
}

/* 숫자인지 체크하고 아닐경우 경고창 */
function isNumeric_alert(checkStr, str) {
    if (isNaN(checkStr.value)) {
        alert(str);
        checkStr.focus();
        return false;
    }
    return true;
}

/* 이메일 형식 체크 */
function isEmail(str) {
    if (str.search(/(\S+)@(\S+)\.(\S+)/) == -1) {
        return false;
    } else {
        return true;
    }
}

/* 특수 문자 제외 */
function A_Zetc(str) {
    var m_Sp = /[$\\@\\\#%\^\&\*\(\)\[\]\+\_\{\}\`\~\=\|]/;
    var m_val = str;
    var strLen = m_val.length;
    var m_char = m_val.charAt((strLen) - 1);
    if (m_char.search(m_Sp) != -1) {
        return false;
    } else {
        return true;
    }
}

/* 아이프레임 사이즈 조절 */
function resizeIF(obj, Pheight) {
    var Body;
    var H, Min;

    // 최소 높이 설정 (너무 작아지는 것을 방지) 
    Min = 100;

    Body = (obj.contentWindow.document.getElementsByTagName('BODY'))[0];
    H = parseInt(Body.scrollHeight) + Pheight;
    obj.style.height = (H < Min ? Min : H) + 'px';

    window.scrollTo(1, 1);
}

/* Flicker 제거 스크립트 */
(function() {
    /*Use Object Detection to detect IE6*/
    var m = document.uniqueID /*IE*/
    document.compatMode /*>=IE6*/
    !window.XMLHttpRequest /*<=IE6*/
    document.execCommand;
    try {
        if (!!m) {
            m("BackgroundImageCache", false, true) /* = IE6 only */
        }
    } catch (oh) { };
})();

/* 한글을 2byte로 인식하여 length 체크 */
function getByteLength(data) {
    var len = 0;
    var str = data.substring(0);

    if (str == null) return 0;

    for (var i = 0; i < str.length; i++) {
        var ch = escape(str.charAt(i));

        if (ch.length == 1) len++;
        else if (ch.indexOf("%u") != -1) len += 2; //Db가 한글을 3byte로 인식하여 2->3
        else if (ch.indexOf("%") != -1) len += ch.length / 3;
    }

    return len;
}


/* 아이프레임 크기 자동 조절 */
function doResize(iframeId)
{
	document.getElementById(iframeId).height = eval(iframeId).document.body.scrollHeight+25;
	document.getElementById(iframeId).width = eval(iframeId).document.body.scrollWidth;
}


/* 주메뉴 롤오버 */
function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}
function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}


/* 새창뜨기 */
function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}


/* 플래시 활성화 */
function showFlash(flaFile, widths, heights, btrans) { 
  var strings = '<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=5,0,0,0" width="' + widths + '"  height="' + heights + '"><param name="movie" value="' + flaFile + '"><param name="quality" value="high"><param name="wmode" value="transparent">'; 
  strings += '<embed src="' + flaFile + '" quality="high" wmode="transparent" pluginspage="http://www.macromedia.com/shockwave/download/index.cgi?P1_Prod_Version=ShockwaveFlash" type="application/x-shockwave-flash" width="' + widths + '" height="' + heights + '"></embed></object>'; 
  document.write(strings); 
  return; 
}