function comment_page(content_id,np,p_comment,ps)
{
  xmlHttp=GetXmlHttpObject()
 if (xmlHttp==null)
  {
	 alert ("您的浏览器不支持AJAX！");
		return;
  }

	var url="comment_page.php";
	url = url + "?np="+np+"&p_comment="+p_comment+"&content_id="+content_id+"&ps="+ps;
	url = url+"&time="+Math.random();
	xmlHttp.onreadystatechange=cb_page;
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);
}



function GetXmlHttpObject()
{
  var xmlHttp=null;
  try{
    // Firefox, Opera 8.0+, Safari
		xmlHttp=new XMLHttpRequest();
  }catch (e){
    // Internet Explorer
    try
      {xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");}
    catch (e)
      {xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");}
    }
  return xmlHttp;
}

function cb_page() 
{ 

  if (xmlHttp.readyState==4)
  { 
		msgs = xmlHttp.responseText;
		
		document.getElementById("sc_pinlun").innerHTML = msgs;
		return ;
		
  }
}