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_showHideLayers() { //v3.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for(i=0; i<(args.length-2); i+=3)
  if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v='hide')?'hidden':v; }
    obj.visibility=v; }
}

var curButton = 0;
function onOut( btn )
{
  if( btn != curButton ){
    var nm  = "top_btn" + btn;
    var img = "top_btn" + btn + ".gif";
    document.images[nm].src = img_url + "/images/" + img;
  }
}

function onOvr( btn )
{
  if( btn != curButton ){
    var nm  = "top_btn" + btn;
    var img = "top_btn" + btn + "_o.gif";
    document.images[nm].src = img_url + "/images/" + img;
  }
}

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

/** 
* string String::cut(int len)
* ±ÛÀÚ¸¦ ¾Õ¿¡¼­ºÎÅÍ ¿øÇÏ´Â ¹ÙÀÌÆ®¸¸Å­ Àß¶ó ¸®ÅÏÇÕ´Ï´Ù.
* ÇѱÛÀÇ °æ¿ì 2¹ÙÀÌÆ®·Î °è»êÇϸç, ±ÛÀÚ Áß°£¿¡¼­ À߸®Áö ¾Ê½À´Ï´Ù.
*/
String.prototype.cut = function( len )
{
        var str = this;
        var l = 0;
        for (var i=0; i<str.length; i++) {
                l += (str.charCodeAt(i) > 128) ? 2 : 1;
                if (l > len) return str.substring(0,i) + "...";
        }
        return str;
}

/** 
* bool String::bytes(void)
* Çش罺Ʈ¸µÀÇ ¹ÙÀÌÆ®´ÜÀ§ ±æÀ̸¦ ¸®ÅÏÇÕ´Ï´Ù. (±âÁ¸ÀÇ length ¼Ó¼ºÀº 2¹ÙÀÌÆ® ¹®ÀÚ¸¦ ÇѱÛÀÚ·Î °£ÁÖÇÕ´Ï´Ù)
*/
String.prototype.bytes = function()
{
        var str = this;
        var l = 0;
        for (var i=0; i<str.length; i++) l += (str.charCodeAt(i) > 128) ? 2 : 1;
        return l;
}

String.prototype.trim = function()
{
	var str = this.replace( /(\s+$)/g, "" );
	return str.replace( /(^\s*)/g, "" );
}