get ajax to stop loading.

[harmor19]

I am just trying to get this ajax thing down and after a few months I finally made progress.

I am making a shoutbox type mod (just for practice) and I have a link called "Add Message".

When I click the link it brings up the text box like I want it to but I don't know how to get the page to sto reloading.

Here's the js i'm using (I stole from another site)
function loadurl(dest) {

try {

// Moz supports XMLHttpRequest. IE uses ActiveX.
// browser detction is bad. object detection works for any browser
xmlhttp = window.XMLHttpRequest?new XMLHttpRequest():
new ActiveXObject("Microsoft.XMLHTTP");

}
catch (e)
{
// browser doesn't support ajax. handle however you want
}

// the xmlhttp object triggers an event everytime the status changes
// triggered() function handles the events

xmlhttp.onreadystatechange = triggered;


// open takes in the HTTP method and url.
xmlhttp.open("GET", dest);

// send the request. if this is a POST request we would have
// sent post variables: send("name=aleem&gender=male)
// Moz is fine with just send(); but
// IE expects a value here, hence we do send(null);

xmlhttp.send(null);
}
function triggered() {

// if the readyState code is 4 (Completed)
// and http status is 200 (OK) we go ahead and get the responseText
// other readyState codes:
// 0=Uninitialised 1=Loading 2=Loaded 3=Interactive

if ((xmlhttp.readyState == 4) && (xmlhttp.status == 200)) {

// xmlhttp.responseText object contains the response.
document.getElementById("output").innerHTML =
xmlhttp.responseText;
}
}