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ajax:callback function not called for every readystatechange of the request

 
Greenhorn
Posts: 4
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Hi
I am working with an ajax program.
In that i have defined a callback funtion
but that function is not being called for every readystatechange of the request object for the first request .
but it is working fine from the second request.

function find(start,number){
var nameField=document.getElementById("text1").value;
var starting=start;
var total=number;
if(form1.criteria[0].checked) {
http.open("GET", url + escape(nameField)+"¶m2="+escape("exact")+"¶m4="+escape(starting)+"¶m5="+escape(number));
}
else if(form1.criteria[2].checked) {
http.open("GET", url + escape(nameField)+"¶m2="+escape("prefix")+"¶m4="+escape(starting)+"¶m5="+escape(number));
}
http.onreadystatechange = callback2;
http.send(null);
}

function callback2(){
if (http.readyState == 4) {//request state
if(http.status==200){
var message=http.responseXML;
alert(http.responseText);
Parse2(message);
}else{
alert("response is not completed");
}
}else{
alert("request state is :-"+http.readyState);
}
}
 
author
Posts: 15385
6
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how are you defing http and when you mean it is working for the second request, you talking if branch or calling it twice. If twice, how fast is the request apart?

Eric
 
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