function openCenter(url, name,width, height,stylestr)
{
	var sss=stylestr + "height=" + height;
	var win;
	sss += ",width=" + width ; 
	if (window.screen) { 
		ah = screen.availHeight - 30;
		aw = screen.availWidth - 10;
		xc = (aw - width) / 2;
		yc = (ah - height) / 2;
		sss += ",left=" + xc;
		sss += ",top=" + yc;
	}
	win = window.open(url, name, sss);
	win.focus();
	return win;
}

function PlayIt(prodID,mvid,mtype)
{
	var url = "http://topics.bdchina.com/newplayer/playit.asp";
	
	if(typeof(mvid)=="undefined") mvid=""
	if(typeof(mtype)=="undefined") mtype=""

	url += "?prodid=" + prodID;
	url += "&mvid" + mvid;
	url += "&mtype" + mtype;
	
	var objWin=openCenter( "about:blank","PlayItWin",402,270,'status=no,scrollbars=yes,resizable=yes,');
	objWin.location.replace(url);
}