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;
			     } 
			     }