Jump to content

Disable Dropdown Not Working


unemployment

Recommended Posts

Firebug says I have undefined variables. I'm not sure why.

 

My if doesn't add the disable.

 

addOnload(function(){
    var country = document.accountsettings.country.selectedIndex;
    var country_text = document.accountsettings.country.options[country].text;
   
    if(country_text != 'United States')
        {
            document.getElementById('state').disabled=true;
        }
    else
        {
            document.getElementById('state').disabled=false
        }
});

Link to comment
Share on other sites

I'm assuming that "accountsettings" is the name of a form and that "country" is the name of a select field. Although the way you are referencing the field usually works, it is not the preferred method.

 

I would suggest referencing the select field by ID (option 1) or refrence explicitly (option 2)

 

Option 1

var selectObj = document.getElementById('country');
var country_text = selectObj.options[selectObj.selectedIndex].text;

 

Option 2

var selectObj = document.forms['accountsettings'].elements['country'];
var country_text = selectObj.options[selectObj.selectedIndex].text;

Link to comment
Share on other sites

This thread is more than a year old. Please don't revive it unless you have something important to add.

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.