getElementsByTagName + IE

[vlitim76]

I am using Ajax and have got it working in Firefox but IE doesn't seem to fill the getElementsByTagName array correctly

Below is the end function that gets the data. the xml that is returned to it is

<valid>true</valid>

function checkDuplicateCaseNo(responseXML)
{

    var msg = responseXML.getElementsByTagName("valid")[0].firstChild.nodeValue;
    if (msg == "false") 
    {
        alert("No")
    }
}

and this is the httprequest part

function makeHttpRequest(url, callback_function,param, return_xml) 
{ 
   var http_request = false; 

   if (window.XMLHttpRequest) { // Mozilla, Safari,... 
       http_request = new XMLHttpRequest(); 
       if (http_request.overrideMimeType) { 
           http_request.overrideMimeType('text/xml'); 
       } 
   } else if (window.ActiveXObject) { // IE 
       try { 
           http_request = new ActiveXObject("Msxml2.XMLHTTP"); 
       } catch (e) { 
           try { 
               http_request = new ActiveXObject("Microsoft.XMLHTTP"); 
           } catch (e) {} 
       } 
   } 
   if (!http_request) { 
       alert('You browser doesn\'t support this feature.'); 
       return false; 
   } 
   http_request.onreadystatechange = function() { 
       if (http_request.readyState == 4) { 
           if (http_request.status == 200) { 
               if (return_xml) { 
                   eval(callback_function + '(http_request.responseXML,param)'); 
               } else { 
                   eval(callback_function + '(http_request.responseText,param)'); 
               } 
           } else { 
               alert('There was a problem with the request.(Code: ' + http_request.status + ')'); 
           } 
       } 
   }
   url = url + '&xml=1&ms='+new Date().getTime()
   http_request.open('GET', url, true); 
   http_request.setRequestHeader('REFERER', document.location);
   http_request.send(null); 
}

 

[BabyJeffy]

Ah. It's probably because valid is not a valid tag name... unless of course you are returning a full DTD etc for your XML. Most likely you are not.

I suggest you change your code to return HTML-valid tags:

<div>false</div>

An alternative may be to avoid using getElementsByTagName and instead walk the node tree and and query the node type etc manually.

Cheers,
Jeff

[tt]Jeff's Page @ Code Couch

http://www.codecouch.com/jeff/blog/

http://www.coedit.co.uk/

[/tt]

What is Javascript? FAQ216-6094

 

[beef40]

The problem may be the reply from the server. I had the same problem until I added:

header("Content-type: text/xml");

to the PHP file on the server.