Ajax in firefox

[napsternapster]

Morning people,

 

I'm using ajax to validate inforamtion entered by the user.

The following is the code used to do the validation.

function validateServer(f)
{
server_error = 0;
correct = 0;
//get information from the form a tag id's
var info_select = document.getElementById("info_type_select").value;
var info_input = document.getElementById("info_type_input").value;

var d_select = document.getElementById("detailed_type_select").value;
var d_input = document.getElementById("detailed_type_input").value;

var i_select = document.getElementById("detailed_identifiers_select").value;
var i_input = document.getElementById("detailed_identifiers_input").value;

var g_select = document.getElementById("group_type_select").value;
var g_input = document.getElementById("group_type_input").value;
 //1 = information type , 2 = group type , 3 = detailed information type , 4 = identifier information type

    var urlinfo_input = "checking_information.php";
urlinfo_input = urlinfo_input+"?information="+info_input+"&id_select="+info_select+"&type=1";
executeAjax(urlinfo_input,"GET","info_type_select","info_type_input","type_error");

var urlgroup_input = "checking_information.php";
urlgroup_input = urlgroup_input+"?information="+g_input+"&id_select="+g_select+"&type=2";
executeAjax(urlgroup_input,"GET","group_type_select","group_type_input","group_error");

var urldetailed_input = "checking_information.php";
urldetailed_input = urldetailed_input+"?information="+d_input+"&id_select="+d_select+"&type=3";
executeAjax(urldetailed_input,"GET","detailed_type_select","detailed_type_input","detailed_error");

var urlidentifier_input = "checking_information.php";
urlidentifier_input = urlidentifier_input+"?information="+i_input+"&id_select="+i_select+"&type=4";
executeAjax(urlidentifier_input,"GET","detailed_identifiers_select","detailed_identifiers_input","identifier_error");	


if(server_error == 0 )
{
	//f.submit();
	alert("submit");
}

}


function executeAjax(url,method,select_id,input_id,error_id)
{
var xmlhttp = new GetXmlHttpObject();

if(method == 'GET')
{
	xmlhttp.open(method, url, true);
	xmlhttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded; charset=UTF-8");
	xmlhttp.onreadystatechange = function()
	{
		if(xmlhttp.readyState == 4 && xmlhttp.status == 200)
		{
			if(xmlhttp.responseText != 0)
			{
				server_error++;
				document.getElementById(error_id).innerHTML = xmlhttp.responseText;
				document.getElementById(select_id).style.background = 'red';
				document.getElementById(input_id).style.background = 'red';
			}

		}
	}
	xmlhttp.send(null);
}

 

Problem

 

xmlhttp.open(method, url,true); When I use true to open the php script it processes javascript before getting the response from php page in all 4 browsers chrome,IE7,Opera and firefox

 

xmlhttp.open(method, url,false); when I use false it works well to other browsers except firefox.on firefox it does not get any response the xmlhttp.responseText and it submits without getting any response from php script.

 

I thank you in advice for your assistance