function f_switchVid(a_source)
{
	document.getElementById("ytm").innerHTML = "<object width=\"480\" height=\"295\"><param name=\"movie\" value=\"" + a_source + "\"></param><param name=\"allowFullScreen\" value=\"true\"></param><param name=\"allowscriptaccess\" value=\"always\"></param><embed src=\"" + a_source + "\" type=\"application/x-shockwave-flash\" allowscriptaccess=\"always\" allowfullscreen=\"true\" width=\"480\" height=\"295\"></embed></object>";
}