Call to php not working in IE

[WebDevChick]

I'm launching the below javascript with an onChange event in the html:

<select name="date" onChange="showUser(this.value)">

I've verified that the onChange event is getting to the javascript by doing a simple alert("working"); and IE did fire up the alert, however the actual code that I want does not seem to work. (its functional in FF, Chrome, Safari, iPad, and Android).

What the function does is: take the value passed to it through the onchange, and send it to a php file as a variable. The php file takes the variable it gets and inserts it into a DB. I don't think the php portion is the problem because it works in every other browser. Does anyone have any insight?

function showUser(str)
{
if (str=="")
  {
  document.getElementById("txtHint").innerHTML="";
  return;
  } 
if (window.XMLHttpRequest)
  {// code for IE7+, Firefox, Chrome, Opera, Safari
  xmlhttp=new XMLHttpRequest();
  }
else
  {// code for IE6, IE5
  xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
  }
xmlhttp.onreadystatechange=function()
  {
  if (xmlhttp.readyState==4 && xmlhttp.status==200)
    {
    document.getElementById("txtHint").innerHTML=xmlhttp.responseText;
    }
  }
xmlhttp.open("GET","http://testest.com/itgoeshere.php?q="+str,true);
xmlhttp.send();
}

I realize that have to explicitly add value attributes to each <option> tag, as you must do so for I.E. But I believe I have done this...


Here's an example for what the select statement looks like...


<select name="date" onChange="showUser(this.value)">
<option value="">---</option>
<option value="1">Past hour</option>
<option value="2">Past week</option>
<option value="3">Past month</option>
<option value="4">Past year</option>
</select>


I

[toicontien]

You might need to pass null to xmlhttp.send();

xmlhttp.send(null);