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 expirationDate=new Date();
	expirationDate.setDate(expirationDate.getDate()+expiredays);
	document.cookie = c_name 
		+ "="
		+ escape(value)
		+ ((expirationDate==null) ? "" : ";expires=" + expirationDate.toGMTString())
		+ ";path=/"
		;
}