var cur_url = document.URL;//http://www.100e.com/booklib/detail/
var cur_url_arr = cur_url.split('/');
var cur_path = cur_url_arr[3];//booklib
var cur_next_path = cur_url_arr[4];//detail
var tar_id = null ;
switch( cur_path.toLowerCase() )
{
	
	case "use100e" :
		tar_id = 'use';
		break;
	case "booklib" :
		tar_id = 'booklib';
		break;
	case "book" :
		tar_id = 'booklib';
		break;
	case "myspace" :
		tar_id = 'myspace';
		break;
	case "search" :
		tar_id = 'myspace';
		break;
	case "group" :
		tar_id = "myspace"
		break;
	case "club" :
		tar_id = "myspace"
		break;
	case "pay" :
		tar_id = 'pay';
		break;
	case "myaccount" :
		tar_id = 'pay';
		break;
	case "vip" :
		tar_id = 'vip';
		break;
	case "more.asp","more.shtml" :
		tar_id = 'more';
		break;
	case "teacher" :
		tar_id = 'vc';
		break;
	case  "vc" :
		tar_id = 'vc';
	default:
		break;
}
//链接为二级目录的情况
if(cur_url_arr.length == 5 || cur_url_arr.length == 6){
	switch(cur_next_path.toLowerCase()){
		case "client_help" :
			tar_id = 'use';
			break;
		default:
			break;
	}
}
if(cur_url.toLowerCase() == "http://www.100e.com" || cur_url.toLowerCase() == "http://www.100e.com/" || cur_url.toLowerCase() == "http://www.100e.com/index.aspx")
{
	tar_id = 'index';
	}
if(cur_url.toLowerCase() == "http://space.100e.com" || cur_url.toLowerCase() == "http://space.100e.com/" || cur_url.toLowerCase() == "http://space.100e.com/index.aspx")
{
	tar_id = 'myspace';
	}
if(cur_url.toLowerCase().indexOf("http://vc.100e.com") != -1)
{
	tar_id = 'vc';
}

if( tar_id != null )
{
	document.getElementById('nav_'+tar_id).className = "select";
}