Fixing "undefined" problem

So i made a script:

http://proseductia.ro/keyword/

The only problem with it it's this:

If you write something really fast at keyword, it will display "undefined" for a few moments where it have to show the text... what i can do ? is there any way at less to change the "undefined" with processing?

 

Hi SeoPink,

it is because of your function keycount() and the useage of AJAX there. First - if you use POST request, take away the last line http.send(null); - it's useful for GET request where you pass the query directly after URL. Second - you call http.abort(); before every new call, but later in http.onreadystatechange handler you check only for readyState, not for status. Aborted request has readyState=4, but it's status is never 200 (success), and therefore you get undefined into the textarea. It's simply not sending anything back to client...

I rewrote it without testing, but I guess it will work

function keycount(xkey,divname) {
	var backtext;
	var contentType = "application/x-www-form-urlencoded; charset=UTF-8";
	var sendText = document.getElementById('nicearea').value;
	var sendKeyword = document.getElementById(xkey).value;

	var key1 = document.getElementById('key1').value;
	var key2 = document.getElementById('key2').value;
	var key3 = document.getElementById('key3').value;

	var query = "text="+escape(sendText)+"&keyword="+escape(sendKeyword)+"&key1="+escape(key1)+"&key2="+escape(key2)+"&key3="+escape(key3);

	http.abort();
	response='';
	http.open("POST", "keycount.php", true);
	http.setRequestHeader("Content-Type", contentType);
	http.send(query);
	http.onreadystatechange=function() {
		if(http.readyState == 4 && http.status == 200) {
			var response=http.responseText;
			var excade=response.split("@#@phpguy@#@");
			backtext=excade[1];
			document.getElementById(divname).innerHTML = excade[0];
			document.getElementById('inputtext').style.display="none";
			document.getElementById('showtext').style.display="block";
			document.getElementById('showtext').innerHTML = backtext;
		}
	}
} 

Code (Javascript):

Btw. check JSON for sending well-formatted data with AJAX