Question

http://jsfiddle.net/6Pu3E/

JS:

$(document).ready(function() {
    var block = false;
    if $('#password').attr('disabled'); {
        block = false;
    }else{
        block = true;
    };
    if block {
        $('.form_input input').attr('disabled','disabled');
    }else{
        $('.form_input input').removeAttribute('disabled');
    }
});

HTML:

<form>
    <input id="password" value="" />
    <input class="form_input" id="Special" />
    <input class="form_input" id="Nothing Special" />
</form>

The goal is that all the inputs with a certain class get the attribute disabled if the first input with ID=”password” does NOT have the attribute disabled. If the first input is disabled, nothing happens. I.e. the other inputs won’t get the disabled attribute.

Answer 1

Like this? jsFiddle example

var block = false;
if ($('#password').attr('disabled')) {
    block = false;
} else {
    block = true;
}
if (block) {
    $('.form_input').attr('disabled', 'disabled');
} else {
    $('.form_input').removeAttribute('disabled');
}

​Or the ultra-condensed version:

$('.form_input').attr('disabled',!$('#password').attr('disabled') );​

jsFiddle example