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());
}