<!--
/////////////////////////////////////////////////////////	
/////////////////////////////////////////////////////////
///////////////////////ajax框架////////////////////////
//send函数
function send_request(url,callback)
{
//
	//alert(url);
	//return false;
 	http_request = false;
 //测试浏览器来初始化http_request.
 
 	if(window.XMLHttpRequest) //mozilla浏览器
	{
	   errmsg = "mozilla浏览器";
	  http_request = new XMLHttpRequest();
	  if(http_request.overrideMimeType) //设置MIME类型
	  {
	  	
		  errmsg = "设置MIME浏览器";
	     http_request.overrideMimeType('text/xml');
	  }
	}
	
	else if(window.ActiveXObject)//ie浏览器
	{
	///		  alert("ie浏览器"); 
		  try
		  {
	//	   alert("trymsxml2"); 
		   http_request = new ActiveXObject("Msml2.XMLHTTP")
		  }
		  catch(e)
		  {
		  	try{ 
	///		  alert("try_Microsoft"); 
			   http_request = new ActiveXObject("Microsoft.XMLHTTP")
			}catch(e){}
		  }
		
		
	} ///endif  ----  根据浏览器初始化结束
	//失败处理.
 	   if(!http_request)
	{
		alert("不能创建请求的页面");
		return false;
	}
	//设回callback代理函数.以及发送http-request.	
		http_request.onreadystatechange = callback;
		http_request.open("POST",url,true);
		http_request.send(null);
}
//end send