populate form through php

[nottoolate]

Hello,

 

I'm trying to populate a form based on the users input in a specific text box (job number). But I'm having some trouble getting this to work properly.

Currently, when I key in a job number, the fields that are to be populated display 'undefined', including my job number field.

Also, taking a look at my job_setup.php, my variables are considered undefined and I'm not sure why.

 

Here is my script:

var url = "job_setup.php?param=";
		function getJobinfo() {
		var idValue = document.getElementById("job_number").value;
		var myRandom=parseInt(Math.random()*99999999);  // cache buster
		http.open("GET", url + escape(idValue) + "&rand=" + myRandom, true);
		http.onreadystatechange = handleHttpResponse;
		http.send(null);
		}

		function handleHttpResponse() {
		if (http.readyState == 4) {
		 results = http.responseText.split(",");
		   document.getElementById('customer').value = results[0];
		   document.getElementById('bid_date').value = results[1];
		   document.getElementById('comp_date').value = results[2];
		   document.getElementById('job_number').value = results[3];
		 }
		}

		var http = getHTTPObject(); // We create the HTTP Object 

 

Here is the php file, job_setup.php:

	<?php if(strlen($param)>0){
	$result = mysql_query("SELECT * FROM job 
     	WHERE job_id LIKE '$param%'");
	if(mysql_num_rows($result)==1) {
		while($myrow = mysql_fetch_array($result)){
   			$customer = $myrow["cus_id"];
   			$bid_date = $myrow["job_stat_cd"];
   			$comp_date = $myrow["jt_cd"];
  			$job_id = $myrow["job_id"];
   			$textout .= $customer.",".$bid_date.",".$comp_date.",".$job_id;
		}
	} else {
		$textout=" , , ,".$param;
	}
}
echo $textout; ?>