Need AJAX help

[sheena_bandy]

I'm having a hard time getting this to display the data in the gallerydiv or at all on the page. I'm still new to AJAX, so I've been working on this for nearly 5 hours and can't figure out what's wrong with it. Any help would be greatly appreciated.

 

function GetXmlHttpObject()
{ 
var objXMLHttp=null;
if (window.XMLHttpRequest)
  {
  objXMLHttp=new XMLHttpRequest();
  }
else if (window.ActiveXObject)
  {
  objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP");
  }
return objXMLHttp;
}

var xmlHttp;

function showInfo(str){

// set up xmlHttpRequest object
xmlHttp=GetXmlHttpObject();

if (xmlHttp==null){
	alert ("Browser does not support HTTP Request");
return;
} 

 // prepare to send the xmlHttpRequest object
 var url="galleryback.php";
 url=url+"?YID="+str;

 // catch the readystatechange event and bind it to the processing function
 xmlHttp.onreadystatechange=function(){stateChanged(str)};

 // send the request
 xmlHttp.open("GET",url,true);
 xmlHttp.send(null);
}



function stateChanged(str) 
{ 


if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
{

// get the request result as an XML document
 xmlDoc=xmlHttp.responseXML;


// set the variable to store HTML output
var output = "";

// store all elements in an array
var imageArray = xmlDoc.getElementsByTagName('IMG');
// loop through all elements in the XML document
 for (i=0;i<xmlDoc.getElementsByTagName('IMG').length; i++)
 {

	output = output + "<div style='float: left;'><a href='javascript: imgpopup("+xmlDoc.getElementsByTagName('IID')[i].childNodes[0].nodeValue+","+xmlDoc.getElementsByTagName('extension')[i].childNodes[0].nodeValue;+");'<img src='images/gallery/" +xmlDoc.getElementsByTagName('IID')[i].childNodes[0].nodeValue;
	output = output + "_small." + xmlDoc.getElementsByTagName('extension')[i].childNodes[0].nodeValue;
	output = output + "' /></div>";
 }
output = output + "<br style='clear: both;' />";
// print out the HTML output in the specified div
 document.getElementById('gallerydiv').innerHTML= output;



 }

} 

[abazoskib]

any errors? check the error console in firefox, or firebug

[sheena_bandy]

no errors. It just doesn't parse the xml.

[abazoskib]

lets check to see if you are even getting any return..

//REPLACE THIS:
// get the request result as an XML document
    xmlDoc=xmlHttp.responseXML;

//WITH THIS:
// get the request result as an XML document
    xmlDoc=xmlHttp.responseXML;
alert(xmlDoc);

 

Then test out your page, and let me know if you get any type of return.

[sheena_bandy]

the alert says this

[object XMLDocument]

[sheena_bandy]

It's solved! Someone spotted a syntax error that I hadn't seen and now the thing works. Thanks so much for your help!