xmlhttp and firefox

[igor21]

hey!I have some script that works greate in IE but not works in Firefox.

function isExist(url,queries){     var xmlhttp;     try { xmlhttp = new ActiveXObject("Msxml2.XMLHTTP"); }       catch (e) { try { xmlhttp = new ActiveXObject("Microsoft.XMLHTTP"); }       catch (e) { try { xmlhttp = new XMLHttpRequest(); }       catch (e) { xmlhttp = false; }}}     xmlhttp.Open('POST',url,false);     xmlhttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");     xmlhttp.Send(queries);     var result=(xmlhttp.responseText);     return result; }

What's wrong?Thanks!

[aspnetguy]

try setting it like this

var xmlHttp;if(document.all){  //IE  xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");}else{  //FF,Opera,NN  xmlHttp = new XMLHttpRequest();}

[igor21]

try setting it like this

var xmlHttp;if(document.all){  //IE  xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");}else{  //FF,Opera,NN  xmlHttp = new XMLHttpRequest();}

<{POST_SNAPBACK}>

still the same error in FF: "xmlhttp.Open is not a function"

[Webworldx]

Does:

function isExist(url,queries){    var xmlHttp;    try { xmlHttp = new ActiveXObject("Msxml2.XMLHTTP"); }      catch (e) { try { xmlHttp = new ActiveXObject("Microsoft.XMLHTTP"); }      catch (e) { try { xmlHttp = new XMLHttpRequest(); }      catch (e) { xmlHttp = false; }}}    xmlHttp.open('POST',url,false);    xmlHttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");    xmlHttp.send(queries);    var result=(xmlHttp.responseText);    return result; }

work?

[truonghh]

Hi,How come it never works for me? With the code that has worked for you, it always gives me 'undefined' value.

[jesh]

It's open, not Open.

[boen_robot]

By the way, let me suggest that the scripts should first check for XmlHttpRequest() and then use ActiveX if not available. The reason is that IE7 now has native support for this object and acts faster with it. This would also increase performance in FF and Opera, scince they as well as IE7 won't try check the second code once the first it true.