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// ¾ÕÀ¸·Î ÀÚ±â°¡ »ç¿ëÇÑ functionÀº ¾Æ·¡¿¡ ¼³¸íÀ» ´Þ¾Æ Ãß°¡ÇÒ °Í.
// ³ªÁß¿¡ »ç¿ëÇÏÁö ¾Ê´Â functionÀº °¡Â÷¾øÀÌ ¾ø¾Ù °ÍÀÓ              By JYA 2001/12/04



//·¹ÀÌ¾î Àû¾÷ ÇùÈ¸¼Ò½Ä
function show(object) {
	if (document.layers && document.layers[object] != null) document.layers[object].visibility = 'visible';
	else if (document.all) document.all[object].style.visibility = 'visible';
}
function hide(object) {
	if (document.layers && document.layers[object] != null) document.layers[object].visibility = 'hidden';
	else if (document.all) document.all[object].style.visibility = 'hidden';
}

//¸¶¿ì½º ¿À¹ö, ¾Æ¿ô½Ã ÀÌ¹ÌÁö º¯È­±â
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) { //v4.0
  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 && document.getElementById) x=document.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];}
}


function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}
//¸¶¿ì½º ¿À¹ö, ¾Æ¿ô½Ã ÀÌ¹ÌÁö º¯È­±â///////////////////////////////////




////////////////	ÀÌ¹ÌÁö °¡·Î,¼¼·Î »çÀÌÁî¸¦ °è»êÇÏ¿© µü ¸Â´Â ÆË¾÷Ã¢ ¶ç¿ì±â	////////////////////
var imgObj = new Image();
function showImgWin(imgName,tt,size) {
  imgObj.src = imgName;
  setTimeout("createImgWin(imgObj)", 100);
}
function createImgWin(imgObj) {
  if (! imgObj.complete) {
    setTimeout("createImgWin(imgObj)", 100);
    return;
  }
  imageWin = window.open("", "imageWin",
    "width=" + imgObj.width + ",height=" + imgObj.height);
  imageWin.document.write("<html><body style='margin:0'>");
  imageWin.document.write("<a href=javascript:window.close()><img src='" + imgObj.src + "' border=0></a>");
  imageWin.document.write("</body><html>");
  imageWin.document.title = imgObj.src;
}
////////////////	ÀÌ¹ÌÁö °¡·Î,¼¼·Î »çÀÌÁî¸¦ °è»êÇÏ¿© µü ¸Â´Â ÆË¾÷Ã¢ ¶ç¿ì±â	////////////////////


////////////////////  ÀÎ¼âÇÏ±â ¹öÆ°
function printWindow(){
    browserVersion = parseInt(navigator.appVersion)
        if (browserVersion >= 4) window.print()
}



/////////////////ÇÑÁÙ¾²±â ////////////////////////////
function updateChar(length_limit)
{
	var form=document.form1;
	var length = calculate_msglen(form.poll_detail.value);
	textlimit.innerText = length;
	if (length > length_limit) {
		alert("ÃÖ´ë " + length_limit + "byteÀÌ¹Ç·Î ÃÊ°úµÈ ±ÛÀÚ¼ö´Â ÀÚµ¿À¸·Î »èÁ¦µË´Ï´Ù.");
		form.poll_detail.value = form.poll_detail.value.replace(/\r\n$/, "");
		form.poll_detail.value = assert_msglen(form.poll_detail.value, length_limit);
/*
	} else if (length == length_limit) {
		form.subject.value = form.subject.value.replace(/\r\n$/, "");
*/
	}
}

function calculate_msglen(message)
{
	var nbytes = 0;

	for (i=0; i<message.length; i++) {
		var ch = message.charAt(i);
		if(escape(ch).length > 4) {
			nbytes += 2;
		} else if (ch == '\n') {
			if (message.charAt(i-1) != '\r') {
				nbytes += 1;
			}
		} else if (ch == '<' || ch == '>') {
			nbytes += 4;
		} else {
			nbytes += 1;
		}
	}

	return nbytes;
}

function assert_msglen(message, maximum)
{
	var inc = 0;
	var nbytes = 0;
	var msg = "";
	var msglen = message.length;

	for (i=0; i<msglen; i++) {
		var ch = message.charAt(i);
		if (escape(ch).length > 4) {
			inc = 2;
		} else if (ch == '\n') {
			if (message.charAt(i-1) != '\r') {
				inc = 1;
			}
		} else if (ch == '<' || ch == '>') {
			inc = 4;
		} else {
			inc = 1;
		}
		if ((nbytes + inc) > maximum) {
			break;
		}
		nbytes += inc;
		msg += ch;
	}
	textlimit.innerText = nbytes;
	return msg;
}



////  ¸ÖÆ¼ »èÁ¦½Ã ÇÊ¿äÇÑ ÇÔ¼ö////////////////////////////////////////////
function ChkBoxCheck(obj) {

	if (!obj) {					// checkbox == undefined
		return false;
	}
	if (isNaN(obj.length)) {	// checkbox != Array
//		alert(obj.checked);
		if (obj.checked) {

		return true;}
		else  return false;
	}
	else {						// checkbox == Array
		for ( var i = 0 ; i < obj.length ; i++ ) {
			if (obj[i].checked) {  return true; }
		}
		return false;
	}
	return true;
}

////  ³»¿ëÀÛ¼º½Ã ±ÛÀÚ¼ö Á¦ÇÑ¿¡ ÇÊ¿äÇÑ ÇÔ¼ö////////////////////////////////////////////

function sizeChk( frmobj,maxsz )
{
	//alert(maxsz)
	if( frmobj.value.length > maxsz )
	{
		alert( "ÃÖ´ë "+ maxsz +"ÀÚ±îÁö¸¸ ÀÔ·Â°¡´ÉÇÕ´Ï´Ù" );
			frmobj.value = frmobj.value.substring( 0, maxsz);
			return false;
	}    	
}

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