// JavaScript Document

function changeVideo(video)
{
	document.getElementById('travel_w1').style.visibility="hidden";
	document.getElementById('travel_w2').style.visibility="hidden";
	document.getElementById('polite_w2').style.visibility="hidden";
	document.getElementById('travel').style.visibility="hidden";
	document.getElementById('polite').style.visibility="hidden";
	document.getElementById('mandarin').style.visibility="hidden";
	document.getElementById(video).style.visibility="visible";
	
	video = video.replace(/_w1/, "");
	video = video.replace(/_w2/, "");
	var s1 = new SWFObject("swf/mediaplayer.swf","ply","319","260","8","#FFFFFF");
		s1.addParam("allowfullscreen","true");
		s1.addParam("allowscriptaccess","always");
		s1.addParam("flashvars","file=../flv/video_"+video+".flv&image=images/video_"+video+".jpg");
 
		s1.write("container");
}