/**
 * JavaScript for set and get Document Cookies.
 */

var d = new Date();
if (d.getTimezoneOffset) {
  var iMinutes = d.getTimezoneOffset();
  document.cookie = "rTZ=" + iMinutes;
}

/**
 * Set a cookie
 * @param {Object} c_name
 * @param {Object} value
 */
function setCookie(c_name,value) {
  document.cookie=c_name+ "=" +escape(value);
}

/**
 * Get a cookie
 * @param {Object} c_name
 */
function getCookie(c_name) {
  if (document.cookie.length>0) {
    c_start=document.cookie.indexOf(c_name + "=");
    if (c_start!=-1) {
      c_start=c_start + c_name.length+1;
      c_end=document.cookie.indexOf(";",c_start);
      if (c_end==-1) { c_end=document.cookie.length; }
      return unescape(document.cookie.substring(c_start,c_end));
    }       
  }
  return null;
}