function setPNG24(obj)
{ 
	obj.width=obj.height=1; 
	obj.className=obj.className.replace(/\bPNG24\b/i,''); 
	obj.style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+ obj.src +"',sizingMethod='image');" 
	obj.src=''; 
	return ''; 
} 

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_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);
  if(!x && d.getElementById) x=d.getElementById('ctl00_' + 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() { //v6.0
  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')?'block':(v=='hide')?'none':v;
			}
			obj.display=v;
		}
}

function checkImgFormat(msg, imgPath)
{
	if (imgPath.toLowerCase().indexOf(".png") != -1 || imgPath.toLowerCase().indexOf(".jpg") != -1 || imgPath.toLowerCase().indexOf(".gif") != -1)
	{
		stateFlag = 1;
		return true;
	}
	else
	{
		stateFlag = 0;

		if (imgPath.trim() != "" )
		{
			alert(msg + "은(는) PNG, JPG, GIF파일만  허용됩니다.");
		}
		return false;
	}
}