Calling functions from a .JS file

Question

Good morning,
I stored my Javascript functions in a .JS file and saved the file in the /i/javascript folder on my APEX server.
In the HTML Header field I put the following code: <strong>&lt;script src="#IMAGE_PREFIX#javascript/P9001.js" type="text/javascript"&gt;&lt;/script&gt;</strong>.
In the HTML Body Attribute field I put the following code: <strong>javascript: onLoad='P9001PageLoad()';</strong>
When the page loads I get the error "<em>Object Expected</em>" on Line 21, Char 1. (When I view the source, line 21 is the line with the code from the HTML Body Attribute Field.)
Also, in the source HTML of the page, line 17 has <strong>&lt;script src="/i/javascript/P9001.js" type="text/javascript"&gt;&lt;/script&gt;</strong> which I assume is how the APEX engine renders the code I typed into the HTML Header field, so I think that I typed it correctly.
I am including the JS function that I am trying to call, but I do not believe there is a problem with the code. If I put the code into the Header Text Field then the function is called, and runs as expected. I beleive my issue has something to do with the JS files.
function P9001PageLoad() {
// Called on pageload to populate the Select Lists with the values in the
// hidden fields. The Hidden fields are populated by P9001_PROC_PAGELOAD.
var i = 1;
var counter = 0;
for (i=1;i&lt;=8;i++) {
var slst_simp = document.getElementById("P9001_SLST_SIMPQS_Q" + i);
var hidn_simp = document.getElementById("P9001_HIDN_SIMPQS_Q" + i);
if (hidn_simp.value != parseInt(hidn_simp.value)) {
slst_simp.value = null
counter++
else {
slst_simp.value = hidn_simp.value
if (counter &lt;8) {
var i = 1;
var counter = 0;
for (i=1;i&lt;=8;i++) {
var slst_simp = document.getElementById("P9001_SLST_SIMPQS_Q" + i);
var hidn_simp = document.getElementById("P9001_HIDN_SIMPQS_Q" + i);
if (hidn_simp.value != parseInt(hidn_simp.value)) {
slst_simp.style.backgroundColor = "#dd0000"
Any advice you can offer in helping me utilizing .JS files would be greatly appreciated! Thank you in advance.
Donald Semensky.

Answer 1

Hi,
One other thing you should try - ensure that all command lines in the script end with ; eg:
slst_simp.value = nullshould be:
slst_simp.value = null;In some cases, this can actually cause errors further down in the code.
You could simplify this test by creating a very small script:
function test() {
alert("Hello");
}Run that in your onload and see if a message pops up. If it does, it means that your script contains errors that stops the script from being used and any call to it would return an invalid object type error message.
Andy