XMLhttprequest doesn't work in safari

Question

i have a website and it works fine in Internet Explorer, but the website doesn't work in Safari.
i use xmlhttprequest to get data from the database and that data i want to put in an selectbox.
i have multiple selectboxes and the first one i don't use ajax to get the data and that one works fine. but as soon as i use ajax it doesn't work anymore in safari.
this is the function i call to get the data.
function UpdateOrder(custid)
      var xhrrequest = getXhr();
          // Ici on va voir comment faire du post
      xhrrequest.open("GET","ajax/UpdateOrder.php" +"?q=" + custid, true);
      // ne pas oublier ?a pour le post
      xhrrequest.setRequestHeader('Content-Type','application/x-www-form-urlencoded') ;
      xhrrequest.send("bedrijfsnaam="+custid);
      // On d?fini ce qu'on va faire quand on aura la r?ponse
      xhrrequest.onreadystatechange = function(){
       // On ne fait quelque chose que si on a tout re?u et que le serveur est ok
       if(xhrrequest.readyState==4 && xhrrequest.status==200){
        var string=xhrrequest.responseText;
        var array=eval(string);
        var tdaddress = document.getElementById("tdorderid");
        var selectiebox = document.getElementById("selorderid");
        if (array.length > 0)
         //selectiebox vullen met straatnamen
         var splarray = array.toString();
         var strarray = splarray.split(",");
         var i=0;
         for(i=0; i< strarray.length; i++)
          var oOption=document.createElement("option");
          oOption.setAttribute(i,strarray[i]);
          oOption.setAttribute('value',strarray[i]);
          var oText=document.createTextNode(strarray[i]);
          oOption.appendChild(oText);
          selectiebox.appendChild(oOption);
i also viewed the errorlog and there it said:
Failed to load resource: the server responded with a status of 404 (Not Found)
INVALID_CHARACTER_ERR: DOM Exception 5: An invalid or illegal character was specified, such as in an XML name.
can anyone help me please?

Answer 1

it works. there were some problems with the select box. the way it was created didn't work in safari and chrome. but now it does