function doNotFound(SoftID) {
		if (SoftID==1){
			alert("检测到该机器上没有安装：播放器或播放器版本不正确。\n请您到软件下载区，下载并安装课程点播软件")
		}
		if (SoftID==2){
			alert("检测到该机器上没有安装课程直播客户端组件，或版本不正确。\n请您到软件下载区，下载并安装合适的课程直播客户端。")
		}
	} 
	//---------------------------------------------------------------------
	var bInstalled=true; 
	function SinoEduCoursePlay(CourseUrl) {
		try	{
			if(SinoDisp.Play("", CourseUrl))	{	bInstalled=true;	}
			else								{	bInstalled =false;	}
		} 
		catch (e)								{	bInstalled = false; }
		if (! bInstalled)						{	doNotFound(1);		}
	}
	function SinoEduCourseLive(CourseUrl) {
		try	{
			if (SinoLive.Active(CourseUrl, "xstation")) {	bInstalled = true;	}
			else								{	bInstalled =false;	}
		} 
		catch (e)								{	bInstalled = false; }
		if (! bInstalled)						{	doNotFound(2);		}
	}