Object not supported by Method getElementbyID

[walkerrv]

I have a problem that is kicking my butt.

I am a javascript newb. What I have is a list of values which I am pulling from a database to create my javascript. What I am doing it getting the Zip, city state from existing data and trying to populate city and state when zip exists.

Here is my script.

<script type="text/javascript">

function changeCityState() {
if (document.getElementbyID('Zip').value = '12345')
{
document.getElementbyId('City').value = 'TEST';
document.getElementbyId('State').value = 'CA';
}
if (document.getElementbyID('Zip').value = '67890')
{
document.getElementbyId('City').value = 'TEST!';
document.getElementbyId('State').value = 'MD';
}
}
</script>

Form
<form...>
<input name="Zip" type="text" id="Zip" size="6" value="" onChange="changeCityState()">
<input name="City" type="text" id="City" size="20" value="">,
<select name="State" id="State">
<option></option>
<option value="AL">Alabama</option>
<options...>
</select>
</form>

When I type in the zip and exit it I get a 'Object Not Supported by method.

What am I missing or doing wrong?

Any help would be greatly appreciated!

Thanks,

 

[BabyJeffy]

Simple... getElementByID was what you wanted. Javascript is case sensitive

Cheers,
Jeff

 

[walkerrv]

I figured it was something stupid, however I changed that and still got the same error. I was wondering if it is because I have a select box that it is trying to set the value of.

Any other ideas?

Thanks in advance for you help.

 

[walkerrv]

Nevermind I had another case problem on ID in the evaluation. I fixed it and it worked okay! Thanks

 

[BillyRayPreachersSon]

Your "if" statements should have "==" instead of "=" for the equality test.

Hope this helps,
Dan


[tt]D'ya think I got where I am today because I dress like Peter Pan here?[/tt]

 

[walkerrv]

Thanks, I was coming back to ask about that, cuz I was having issues.

I can do PHP blindfolded so I should have known that.

I fixed that and it fixed the problem before I asked what was going on.

Thanks in arrears for your help.

Working perfectly now!