function change_index(index_from,index_to)
{
	if (location.href.indexOf(index_to)==-1)
	{
		if (location.href.indexOf(index_from)!=-1)
		{
			var str=location.href.replace(index_from,index_to)
			location.href=str
		}
	}
}
change_index("www.zjol.com.cn","hznz.zjol.com.cn")