Firefox ajax

Code:

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<script type="text/javascript">
function addrep(){

alert('Sorry - but you cannot add reputation to <?php echo $propername; ?>!');               
}
function send()
{
  var url = 'send.php?from=<?php echo $nivusr; ?>&type=message';
  if(window.XMLHttpRequest)
  { 
    httpAjax = new XMLHttpRequest();
  }
  else if(window.ActiveXObject)
  {
    httpAjax = new ActiveXObject("Microsoft.XMLHTTP");
  }
  httpAjax.open("POST", url, true);
  httpAjax.onreadystatechange = saved;
  httpAjax.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
  httpAjax.send();
} 

function addfriend()
{
  var url = '../friend.php?from=<? echo $nivusr; ?>&add=<? echo $propername; ?>';
  if(window.XMLHttpRequest)
  { 
    httpAjax = new XMLHttpRequest();
  }
  else if(window.ActiveXObject)
  {
    httpAjax = new ActiveXObject("Microsoft.XMLHTTP");
  }
  httpAjax.open("POST", url, true);
  httpAjax.onreadystatechange = saved;
  httpAjax.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
  httpAjax.send();
} 
function saved() {
alert("A friend request has been dispatched too <?php echo $propername; ?>\n\nYou have to wait for <?php echo $propername; ?> to accept the request!");
}
    </script>

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Sorry to hastle, but please could someone fix this code too work in Firefox, I'm not too sure why but this code only works in Internet explorer.

+REP to anybody who helps.

Why not use Prototype and then just use Ajax.Request, and it works crossbrowser.

Quote:

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Originally Posted by Dentafrice

Why not use Prototype and then just use Ajax.Request, and it works crossbrowser.

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I suck with javascript more than I do with PHP, but thanks will try see into it.