Script URL http://www.w3schools.com/xml/tryit.a...ttprequest_js1

Hello folks, I am really a newbie in the XML world, I want to load some info into a DIV, I was able to did it, however is only working fine in firefox, Internet Explorer 7 does not show the XML information. there is a conflict, the script is not from dynamic drive is from w3 schools, here is the link of my website: http://www.john-designs.com/portfolio2.html

and here is the XML:

Code:
var xmlhttp

function loadXMLDoc(url,ID)
{
xmlhttp=null
// code for Mozilla, etc.
if (window.XMLHttpRequest)
  {
  xmlhttp=new XMLHttpRequest()
  }
// code for IE
else if (window.ActiveXObject)
  {
  xmlhttp=new ActiveXObject("Microsoft.XMLHTTP")
  }
if (xmlhttp!=null)
  {
  xmlhttp.onreadystatechange=state_Change
  xmlhttp.open("GET",url,true)
  xmlhttp.send(null)
  }
else
  {
  alert("Your browser does not support XMLHTTP.")
  }
}

function state_Change()
{
// if xmlhttp shows "loaded"
if (xmlhttp.readyState==4)
  {
  // if "OK"
  if (xmlhttp.status==200)
  {
  document.getElementById('portfolio_content').innerHTML=xmlhttp.responseText
  }
  else
  {
  alert("Problem retrieving data:" + xmlhttp.statusText)
  }
  }
}
I would appreciate any help guys!!!