i don't use korean languge file name.

var fd = new FileDownloaderWriter("FileDownloader", 76, 23);
fd.activeXControlCodeBase = "<?=$IMGSERVER?>/config/FileDownloader2.cab";
fd.activeXControlVersion = "2,0,10,0";

//Set the Download button text
fd.addParam("ButtonDownloadText", "다운로드");
fd.addParam("FileListExpanded", "true");
fd.addParam("ShowFileListProgressDialog", "true");
fd.addParam("ButtonDownloadImageFormat", "Width=76;Height=23;UrlNormal=<?=$IMGSERVER?>/image/button/download.gif");

fd.addParam("LicenseKey", "73020-2E50A-00000-0711C-CA937");
===================================================
fd.addEventListener("DownloadStep", "down");

function down(Step)
{ 	var i=0;
	if (Step == 2)
	{
		var code="";
		var obj = document.getElementsByName("img_cnt[]"); 
		var obj2 = document.getElementsByName("seq[]"); 
		for (var i=0; i < obj.length; i++) 
		{ 
			if( obj[i].checked == true )
			{ 
				code=code+obj2[i].value+";";
			}
		}
		getFileDownloader("FileDownloader").setFileList("<?=$IMGSERVER?>/config/download.php?code=" + code);

	}
}