function ck_b(){
	if(document.all ){
		if(navigator.userAgent.indexOf("MSIE 9")>0){//IE9
			//ÐÞ¸ÄÁ´½Ó
			document.getElementById('link-copy').href = 'download/IdealDVDCopy.zip';
			document.getElementById('link-avi').href = 'download/IdealDVD2AVI.zip';
			document.getElementById('link-ipod').href = 'download/IdealDVD2iPod.zip';
			document.getElementById('link-ipad').href = 'download/IdealDVD2iPad.zip';		
			document.getElementById('link-psp').href = 'download/IdealDVD2PSP.zip';
			document.getElementById('link-mp4').href = 'download/IdealDVD2MP4.zip';
			document.getElementById('link-bluray').href = 'download/IdealBDCopy.zip';
			}
	}
}