[동영상]
1. open
<iframe width="420" height="315" src="http://www.youtube.com/embed/KdMWcHKjYcM" frameborder="0" allowfullscreen></iframe>
2. close
<iframe width="420" height="315" src="http://www.youtube.com/embed/C2j9qRtZmdU" frameborder="0" allowfullscreen></iframe>
3.install
<iframe width="420" height="315" src="http://www.youtube.com/embed/U2rkXCQC_Fw" frameborder="0" allowfullscreen></iframe>