function preview(file_url, file_name) {
var apiKey ="W4MGSPIYG7C7QIA";
var cc = "junggu_council";
var fileUrl = encodeURIComponent(file_url);
//ÆÄÀϰæ·ο¡¼ ÃßÃâ °¡´ÉÇÑ °æ¿ì´Â file_name ÆĶó¹ÌŦ º¸³»Áö ¾ʾƵµ µ˴ϴÙ. var fileName = encodeURIComponent(file_name);
window.open("https://viewer1.withsoft.kr/v1/cnview?key=" + apiKey + "&cc=" + cc + "&file_url=" + fileUrl + "&file_name=" + file_name, "viewstory", "width=700;height=600");
}