var xmlHttp;
      show_feedback()
      
      function feedback()
      { 
        xmlHttp=GetXmlHttpObject()
       // alert("Hi")
        if (xmlHttp==null)
        {
          alert ("Browser does not support HTTP Request")
          return
        } 
        var url = "save_feedback.php"
        url=url+"?username=" + document.getElementById('username').value + "&feedback="+ document.getElementById('feedback_content').value
 
        xmlHttp.onreadystatechange=stateChanged;
        xmlHttp.open("GET",url,true);
        xmlHttp.send(null); 
      }    
      
      function stateChanged() 
      { 
  			if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
          {
            if(xmlHttp.responseText == '1'){
            	document.getElementById('feedback_show').style.display = "none";
              document.getElementById('on_submit').style.display = "none";
  						document.getElementById('msg').style.display = "block"; 
  						document.getElementById('error').style.display = "none";  
  						show_feedback()
            }
            else{
  						document.getElementById('feedback_show').style.display = "none";
              document.getElementById('on_submit').style.display = "none";
  						document.getElementById('msg').style.display = "none";                        				 	
  						document.getElementById('error').style.display = "block"; 
            }
          }else{
  		  			document.getElementById('feedback_show').style.display = "none";
            	document.getElementById('on_submit').style.display = "block";
  		  			document.getElementById('msg').style.display = "none";                        				 	
  		  			document.getElementById('error').style.display = "none"; 
          }
      } 
      
      function GetXmlHttpObject()
      { 
        var objXMLHttp=null
        if (window.XMLHttpRequest)
        {
          objXMLHttp=new XMLHttpRequest()
        }
        else if (window.ActiveXObject)
        {
          objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP")
        }
        return objXMLHttp
      }
			
			
			function show_feedback()
      { 
        xmlHttp1=GetXmlHttpObject()

        if (xmlHttp1==null)
        {
          alert ("Browser does not support HTTP Request")
          return
        } 
        var url = "fetch_feedback.php"
  
        xmlHttp1.onreadystatechange=stateChanged_ShowFeedback;
        xmlHttp1.open("GET",url,true);
        xmlHttp1.send(null); 
      }    
			
			function stateChanged_ShowFeedback() 
      { 
  			if (xmlHttp1.readyState==4 || xmlHttp1.readyState=="complete")
          {
            
            var feeback_details = xmlHttp1.responseText.split("***");
             //alert(questdet[0])
          
             document.getElementById('display_feedback').style.display="block";
             document.getElementById('feedback_pages').style.display = "block";
          
             document.getElementById('display_feedback').innerHTML = feeback_details[0];
             
						 
						 document.getElementById('pageid'+'1').style.display = "block"; 
						 
						 var page_nums= "<table><tr><td>pages</td>"
	 	  			 for(i=1;i<=feeback_details[1];i++){
      		       page_nums += "<td><a href=\"#\" onclick=\"javascript:gotopage(" + i + ", " + feeback_details[1] + ")\">" + i + "</a></td>"
								 if(i != feeback_details[1])  {
								 		page_nums += "<td>|</td>"
								 }
             }
             
             page_nums+="</tr></table>"
             
            
		         document.getElementById('feedback_pages').innerHTML = page_nums; 
		
          } 
      }  
      
      function gotopage(id,totpage){
        // alert(page)
        for(i=1;i<=totpage;i++){
      		document.getElementById('pageid'+i).style.display = "none";
        }
          
        document.getElementById('pageid'+id).style.display = "block";  

      }