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 "";
	}

function setCookie(c_name, value, expiredays)
	{
	var exdate = new Date();
	exdate.setDate(exdate.getDate() + expiredays);
	document.cookie = c_name + "=" + escape(value) + ((expiredays == null) ? "" : ";expires=" + exdate.toGMTString());
	}