prototype problem

[mambenanje]

I am using the prototype ajax library but I realised that each time I
am calling the server for xml the new records get appended to the old
so when I display the xml data it shows the old ones and the new ones
appended. for example when i do a search on questions by calling a php
script the result will be displayed in a div area, when I make a new
search, the new results will be appended and that is all messy can
anyone help me out, I am using

// JavaScript Document
//questions model object
var Questions=Class .create();
Questions.proto type={
initialize: function(contro l,url){
this.control=co ntrol;
this.url=url;
this.questionsP erPage=3;
this.currentPag e=0;
this.questions=[];
this.questionsX ML="";
document.questi onClass=this;
this.paper=new Object();
},
//get question query to server
getQuestions: function(params ){
ajax=new Ajax.Request(th is.url,
{
method: 'get',
parameters: params,
onComplete: this.paperLoade d
});
},
paperLoaded: function(xhr){
alert(xhr.respo nseText);
document.questi onClass.questio nsXML="";
document.questi onClass.questio nsXML=xhr.respo nseXML;
document.questi onClass.extract Questions();
document.questi onClass.showQue stions();
},
//convert xml of question to array
extractQuestion s: function(){
//extract paper properties
var par=this.questi onsXML.getEleme ntsByTagName('q uestions');
this.paper.leve l=par[0].getAttribute(' level');
this.paper.subj ect=par[0].getAttribute(' subject');
this.paper.year =par[0].getAttribute(' year');
this.paper.pape r=par[0].getAttribute(' paper');
alert(this.pape r.level);
//extract questions from xml cross browser purpose use get tag names
var ques=this.quest ionsXML.getElem entsByTagName(' question');
//extract all question from ques forming an object then add it to
questions array

for(i=0;i<ques. length;i++){
obj=new Object();
obj.name=ques[i].getAttribute(' name');
obj.questionId= ques[i].getAttribute(' questionId');
obj.question=qu es[i].firstChild.nod eValue;
this.questions[i]=obj;
}

my problem is with the extractquestion s functions where I get the
result and output but it adds the old ones

[Thomas 'PointedEars' Lahn]

ma********@gmai l.com wrote:

I am using the prototype ajax library [...]

Prototype.js is junk; please do not ask about it here. It is only
a pity that one cannot filter out all postings with a Subject header
containing "prototype" . Because the languages discussed use a
prototype-based object model -- one that Prototype.js ignores,
despite its name.
PointedEars