showVideo = function(){
	document.getElementById('img_container').style.display = 'none';
	document.getElementById('player_container').style.display = 'block';
	document.getElementById('divButonShowVideo').style.display = 'none';
	document.getElementById('divButonHideVideo').style.display = 'block';
}

hideVideo = function(){
	document.getElementById('img_container').style.display = 'block';
	document.getElementById('player_container').style.display = 'none';
	document.getElementById('divButonShowVideo').style.display = 'block';
	document.getElementById('divButonHideVideo').style.display = 'none';
}