// 顶部菜单标题栏变换
function nav_title_change(nav_id){
	if(nav_id=="1"){
		document.getElementById("nav_title_1").style.display = "";
		document.getElementById("nav_title_2").style.display = "none";
		document.getElementById("nav_title_3").style.display = "none";
		document.getElementById("nav_title_4").style.display = "none";
		document.getElementById("nav_title_5").style.display = "none";
		document.getElementById("nav_title_6").style.display = "none";
		document.getElementById("nav_title_li_1").style.backgroundImage="url(http://www.tourist.com.cn/images/linow_44.gif)" 
		document.getElementById("nav_title_li_2").style.backgroundImage="" 
		document.getElementById("nav_title_li_3").style.backgroundImage="" 
		document.getElementById("nav_title_li_4").style.backgroundImage="" 
		document.getElementById("nav_title_li_5").style.backgroundImage="" 
		document.getElementById("nav_title_li_6").style.backgroundImage="" 
		document.getElementById("nav_title_li_1").style.color="#000000" 
		document.getElementById("nav_title_li_2").style.color="#CCCCCC" 
		document.getElementById("nav_title_li_3").style.color="#CCCCCC" 
		document.getElementById("nav_title_li_4").style.color="#CCCCCC" 
		document.getElementById("nav_title_li_5").style.color="#CCCCCC" 
		document.getElementById("nav_title_li_6").style.color="#CCCCCC" 
	}else if(nav_id=="2"){
		document.getElementById("nav_title_1").style.display = "none";
		document.getElementById("nav_title_2").style.display = "";
		document.getElementById("nav_title_3").style.display = "none";
		document.getElementById("nav_title_4").style.display = "none";
		document.getElementById("nav_title_5").style.display = "none";
		document.getElementById("nav_title_6").style.display = "none";
		document.getElementById("nav_title_li_1").style.backgroundImage="" 
		document.getElementById("nav_title_li_2").style.backgroundImage="url(http://www.tourist.com.cn/images/linow_44.gif)" 
		document.getElementById("nav_title_li_3").style.backgroundImage="" 
		document.getElementById("nav_title_li_4").style.backgroundImage="" 
		document.getElementById("nav_title_li_5").style.backgroundImage="" 
		document.getElementById("nav_title_li_6").style.backgroundImage=""  
		document.getElementById("nav_title_li_1").style.color="#CCCCCC" 
		document.getElementById("nav_title_li_2").style.color="#000000" 
		document.getElementById("nav_title_li_3").style.color="#CCCCCC" 
		document.getElementById("nav_title_li_4").style.color="#CCCCCC" 
		document.getElementById("nav_title_li_5").style.color="#CCCCCC" 
		document.getElementById("nav_title_li_6").style.color="#CCCCCC" 
	}else if(nav_id=="3"){
		document.getElementById("nav_title_1").style.display = "none";
		document.getElementById("nav_title_2").style.display = "none";
		document.getElementById("nav_title_3").style.display = "";
		document.getElementById("nav_title_4").style.display = "none";
		document.getElementById("nav_title_5").style.display = "none";
		document.getElementById("nav_title_6").style.display = "none";
		document.getElementById("nav_title_li_1").style.backgroundImage="" 
		document.getElementById("nav_title_li_2").style.backgroundImage="" 
		document.getElementById("nav_title_li_3").style.backgroundImage="url(http://www.tourist.com.cn/images/linow_44.gif)" 
		document.getElementById("nav_title_li_4").style.backgroundImage="" 
		document.getElementById("nav_title_li_5").style.backgroundImage="" 
		document.getElementById("nav_title_li_6").style.backgroundImage=""  
		document.getElementById("nav_title_li_1").style.color="#CCCCCC" 
		document.getElementById("nav_title_li_2").style.color="#CCCCCC" 
		document.getElementById("nav_title_li_3").style.color="#000000" 
		document.getElementById("nav_title_li_4").style.color="#CCCCCC" 
		document.getElementById("nav_title_li_5").style.color="#CCCCCC" 
		document.getElementById("nav_title_li_6").style.color="#CCCCCC" 
	}else if(nav_id=="4"){
		document.getElementById("nav_title_1").style.display = "none";
		document.getElementById("nav_title_2").style.display = "none";
		document.getElementById("nav_title_3").style.display = "none";
		document.getElementById("nav_title_4").style.display = "";
		document.getElementById("nav_title_5").style.display = "none";
		document.getElementById("nav_title_6").style.display = "none";
		document.getElementById("nav_title_li_1").style.backgroundImage="" 
		document.getElementById("nav_title_li_2").style.backgroundImage="" 
		document.getElementById("nav_title_li_3").style.backgroundImage="" 
		document.getElementById("nav_title_li_4").style.backgroundImage="url(http://www.tourist.com.cn/images/linow_56.gif)" 
		document.getElementById("nav_title_li_5").style.backgroundImage="" 
		document.getElementById("nav_title_li_6").style.backgroundImage=""  
		document.getElementById("nav_title_li_1").style.color="#CCCCCC" 
		document.getElementById("nav_title_li_2").style.color="#CCCCCC" 
		document.getElementById("nav_title_li_3").style.color="#CCCCCC" 
		document.getElementById("nav_title_li_4").style.color="#000000" 
		document.getElementById("nav_title_li_5").style.color="#CCCCCC" 
		document.getElementById("nav_title_li_6").style.color="#CCCCCC" 
	}else if(nav_id=="5"){
		document.getElementById("nav_title_1").style.display = "none";
		document.getElementById("nav_title_2").style.display = "none";
		document.getElementById("nav_title_3").style.display = "none";
		document.getElementById("nav_title_4").style.display = "none";
		document.getElementById("nav_title_5").style.display = "";
		document.getElementById("nav_title_6").style.display = "none";
		document.getElementById("nav_title_li_1").style.backgroundImage="" 
		document.getElementById("nav_title_li_2").style.backgroundImage="" 
		document.getElementById("nav_title_li_3").style.backgroundImage="" 
		document.getElementById("nav_title_li_4").style.backgroundImage="" 
		document.getElementById("nav_title_li_5").style.backgroundImage="url(http://www.tourist.com.cn/images/linow_56.gif)" 
		document.getElementById("nav_title_li_6").style.backgroundImage=""  
		document.getElementById("nav_title_li_1").style.color="#CCCCCC" 
		document.getElementById("nav_title_li_2").style.color="#CCCCCC" 
		document.getElementById("nav_title_li_3").style.color="#CCCCCC" 
		document.getElementById("nav_title_li_4").style.color="#CCCCCC" 
		document.getElementById("nav_title_li_5").style.color="#000000" 
		document.getElementById("nav_title_li_6").style.color="#CCCCCC" 
	}else if(nav_id=="6"){
		document.getElementById("nav_title_1").style.display = "none";
		document.getElementById("nav_title_2").style.display = "none";
		document.getElementById("nav_title_3").style.display = "none";
		document.getElementById("nav_title_4").style.display = "none";
		document.getElementById("nav_title_5").style.display = "none";
		document.getElementById("nav_title_6").style.display = "";
		document.getElementById("nav_title_li_1").style.backgroundImage="" 
		document.getElementById("nav_title_li_2").style.backgroundImage="" 
		document.getElementById("nav_title_li_3").style.backgroundImage="" 
		document.getElementById("nav_title_li_4").style.backgroundImage="" 
		document.getElementById("nav_title_li_5").style.backgroundImage="" 
		document.getElementById("nav_title_li_6").style.backgroundImage="url(http://www.tourist.com.cn/images/linow_56.gif)"  
		document.getElementById("nav_title_li_1").style.color="#CCCCCC" 
		document.getElementById("nav_title_li_2").style.color="#CCCCCC" 
		document.getElementById("nav_title_li_3").style.color="#CCCCCC" 
		document.getElementById("nav_title_li_4").style.color="#CCCCCC" 
		document.getElementById("nav_title_li_5").style.color="#CCCCCC" 
		document.getElementById("nav_title_li_6").style.color="#000000" 
	}
}