function getHTTPObject()       
    {                       
          var http;
          var browser = navigator.appName;
          if(browser == "Microsoft Internet Explorer") { http = new ActiveXObject("Microsoft.XMLHTTP"); }
          else{ http = new XMLHttpRequest(); }
          return http;
    }
function open_page(URL)
{  
	
	var page_body=document.getElementById('right');
	page_body.innerHTML ="";
	var ajax2 = getHTTPObject();
				 ajax2.open("GET", "goudu.htm", true); 
				 ajax2.onreadystatechange = function()  
				 {   
				 if(ajax2.readyState==1){}
				 if (ajax2.readyState == 4 && ajax2.status == 200)   
				  {    
					   page_body.innerHTML = ajax2.responseText; 
				  } 
			   }
          ajax2.send(null); 
 setTimeout(function(){open_page2(URL)},"4500");
}
function open_page2(URL)
{  
	var page_body=document.getElementById('right');
	page_body.innerHTML ="";
    var ajax = getHTTPObject();
				 ajax.open("GET", URL, true); 
				 ajax.onreadystatechange = function()  
				 {   
				 if(ajax.readyState==1){}
				 if (ajax.readyState == 4 && ajax.status == 200)   
				  {    
					   page_body.innerHTML = ajax.responseText; 
				  } 
			   }
          ajax.send(null); 
}