function getCookie( cookieName )
 {
  var search = cookieName + "=";
  var cookie = document.cookie;

  // ÇöÀç ÄíÅ°°¡ Á¸ÀçÇÒ °æ¿ì
  if( cookie.length > 0 )
  {
   // ÇØ´ç ÄíÅ°¸íÀÌ Á¸ÀçÇÏ´ÂÁö °Ë»öÇÑ ÈÄ Á¸ÀçÇϸé À§Ä¡¸¦ ¸®ÅÏ.
   startIndex = cookie.indexOf( cookieName );

   // ¸¸¾à Á¸ÀçÇÑ´Ù¸é
   if( startIndex != -1 )
   {
    // °ªÀ» ¾ò¾î³»±â À§ÇØ ½ÃÀÛ À妽º Á¶Àý
    startIndex += cookieName.length;

    // °ªÀ» ¾ò¾î³»±â À§ÇØ Á¾·á À妽º ÃßÃâ
    endIndex = cookie.indexOf( ";", startIndex );

    // ¸¸¾à Á¾·á À妽º¸¦ ¸øã°Ô µÇ¸é ÄíÅ° Àüü±æÀÌ·Î ¼³Á¤
    if( endIndex == -1) endIndex = cookie.length;

    // ÄíÅ°°ªÀ» ÃßÃâÇÏ¿© ¸®ÅÏ
    return unescape( cookie.substring( startIndex + 1, endIndex ) );
   }
   else
   {
    // ÄíÅ° ³»¿¡ ÇØ´ç ÄíÅ°°¡ Á¸ÀçÇÏÁö ¾ÊÀ» °æ¿ì
    return false;
   }
  }
  else
  {
   // ÄíÅ° ÀÚü°¡ ¾øÀ» °æ¿ì
   return false;
  }
 }

 /**
  * ÄíÅ° ¼³Á¤
  * @param cookieName ÄíÅ°¸í
  * @param cookieValue ÄíÅ°°ª
  * @param expireDay ÄíÅ° À¯È¿³¯Â¥
  */
 function setCookie( cookieName, cookieValue, expireDate )
 {
  var today = new Date();
  today.setDate( today.getDate() + parseInt( expireDate ) );
  document.cookie = cookieName + "=" + escape( cookieValue ) + "; path=/; expires=" + today.toGMTString() + ";";
 }
 

 /**
  * ÄíÅ° »èÁ¦
  * @param cookieName »èÁ¦ÇÒ ÄíÅ°¸í
  */
 function deleteCookie( cookieName )
 {
  var expireDate = new Date();
  
  //¾îÁ¦ ³¯Â¥¸¦ ÄíÅ° ¼Ò¸ê ³¯Â¥·Î ¼³Á¤ÇÑ´Ù.
  expireDate.setDate( expireDate.getDate() - 1 );
  document.cookie = cookieName + "= " + "; expires=" + expireDate.toGMTString() + "; path=/";
 }

 

 /**
  * ÀÚ½ÅÀÌ ÁöÁ¤ÇÑ °ªÀ¸·Î ÄíÅ° ¼³Á¤
  */
 function setMyCookie()
 {
  setCookie( form.setName.value, form.setValue.value, form.expire.value );
  viewCookie(); // Àüü ÄíÅ° Ãâ·Â °»½Å
 }


 /**
  * ÀÚ½ÅÀÌ ÁöÁ¤ÇÑ ÄíÅ°¸íÀ¸·Î È®ÀÎ
  */
 function getMyCookie()
 {
  alert( "ÄíÅ° °ª : " + getCookie( form.getName.value ) );
 }

 

 /**
  * ÀÚ½ÅÀÌ ÁöÁ¤ÇÑ ÄíÅ°¸íÀ¸·Î ÄíÅ° »èÁ¦
  */
 function deleteMyCookie()
 {
  deleteCookie( form.deleteName.value );
  alert("ÄíÅ°°¡ »èÁ¦µÇ¾ú½À´Ï´Ù.");
  viewCookie();
 }
 

 /**
  * Àüü ÄíÅ° Ãâ·Â
  */
 function viewCookie()
 {
  if( document.cookie.length > 0 )
   cookieOut.innerText = document.cookie;
  else
   cookieOut.innerText = "ÀúÀåµÈ ÄíÅ°°¡ ¾ø½À´Ï´Ù.";
 }