function get$(id){
	return document.getElementById(id);
	
	}
function Trim(ui){
	var notValid=/(^\s)|(\s$)/; 
	while(notValid.test(ui)){
			ui=ui.replace(notValid,"");
		} 
		return ui;
}
var indexUrl = /\/tribe\/index/;
var mytribeUrl = /\/tribe\/mytribe/;
var friendUrl = /friend/;

var listUrl = /\/tribe\/list/; 
var createUrl = /\/tribe\/create/; 
var joinUrl = /\/tribe\/invite/; 
function changeGroupBar(){
	var h = window.location.href;
	if (indexUrl.exec(h)){get$("umc_index").className= "now";
	 
	}else if (mytribeUrl.exec(h)){get$("umc_mytribe").className= "now";
	
	}else if (friendUrl.exec(h)){get$("umc_friend").className= "now";
	
	}else if (listUrl.exec(h) ){get$("umc_list").className= "now"
	
	}
	else if (createUrl.exec(h)){get$("umc_create").className= "now";
	
	}else if (joinUrl.exec(h)){ get$("umc_join").className= "gba2";
	
	}
	
}

	changeGroupBar();