function page_turnover(){
	
	var pagephoto = $('page_turnover');
	if (pagephoto.innerHTML == "") {
       pagephoto.innerHTML = "没有版面";
	}
	else 
	{
	   var so = new SWFObject("swf/turnover.swf", "mymovie", "350", "510", "7" , "#336699");
	   so.addParam("wmode", "transparent");
	   so.write("turnpage");
	}     
}