function checkLogin(playlink) {
	var width	= screen.width;
	var height	= screen.height;
	var left	= (width - screen.width)/2;
	var top		= (height - screen.height)/2;
	var videoPage = "";
	var cat_id = "";
	var root = "http://cen.i-cable.com/webapps/";
	var url		= "http://cablenews.i-cable.com/webapps/login/login_main.php?videoPage="+videoPage+"&playlink="+playlink+"&cat_id="+cat_id+"&root="+root;
	window.open(url,"ppvwin","height="+height+",width="+width+",top="+top+",left="+left+",toolbar=no,menubar=no,scrollbars=no,resizable=no,location=no,status=no");
}