I needed a way to check a database when someone enters a code into a form
field, and I ran across an old posting from Ray Camden using SPRY assets to
accomplish this. (I know that I should probably use AJAX or jQuery, but I have
not learned these languages yet so I am stuck going off of what I can find on
line).
Anyway, when I enter a code into the field, I get an error Exception caught
while loading checkcode.cfm?orgname=AA; Cannot set property 'innerHTML' of null.
Here is the code below:
<script>
Spry.Data.Region.debug = true;
function checkorgname() {
var uvalue = document.getElementById("orgname").value;
if(uvalue.length < 2) { status(''); return; }
Spry.Utils.loadURL("GET","checkcode.cfm?orgname="+encodeURIComponent(uvalue),
false, orgcheck);
}
function orgcheck(request) {
var result = request.xhRequest.responseText;
if(result == 0) status('You have entered an invalid code.
Please try again!');
else status('');
}
function status(str) {
var resultblock = document.getElementById("resultblock");
resultblock.innerHTML = str;
}
</script>
form field in question:
<input type="text" name="orgname" id="orgname" size="10" required
class="upper" onKeyUp="checkorgname();" />
The checkcode.cfm page works fine though. When I call it on it's own I get
either a 0 or 1 depending if the orgname in the URL variable is in the database.
Thanks,
Bruce
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