using javascript with css?

Question

when i did click text input, i want to change input background color but with javascript.

I know with css.

I want for example.

<form action="" name="abc" method="post">
<input name="abc" id="name" type="text"/>
<input name="yusuf" type="text"/>
<input type="submit"/>
</form>

How can i select element name as name with javascript?

I want similar:

 <script>
document.getElementById("name").style = "background-color:red";
</script>

I want to write css code but direct. Shortly how can i reach style="" parameters?

sorry. i did find. document.getElementById("name").setAttribute("style",'background:red;'); @Marek Sebera. Thanks for proposal. I know jquery but i want to learn with javascript. — Yusuf ali
– Yusuf ali, Commented Aug 28, 2011 at 13:20
have you thought about using jQuery, MooTools or Prototype? It makes this sort of stuff really easy. — gargantuan
– gargantuan, Commented Aug 28, 2011 at 13:20
Check out my jQuery solution below, with working sample. Another question would be: what's the reason for this behavior? Are you doing some kind of validation? If so, jQuery validate is a very complete solution. — Milimetric
– Milimetric, Commented Aug 28, 2011 at 13:38

SLaks · Accepted Answer · 2011-08-28 13:21:02Z

6

You're looking for the style object:

document.getElementById("name").style.backgroundColor = "red";

You can also set the className property to apply an existing CSS class to the element.

answered Aug 28, 2011 at 13:21

SLaks

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Milimetric · Accepted Answer · 2011-08-28 13:36:56Z

2

Is jQuery an option? You can try something like this:

$(document).ready(function(){
    var toggleRed = function(){
        $(this).toggleClass('red');
    };
    $('input[type=text]').focus(toggleRed);
    $('input[type=text]').blur(toggleRed);
});

And then define this in your CSS:

input.red { background-color: Red; color: White; }

Check out the working example: http://jsfiddle.net/V5qJp/

edited Aug 28, 2011 at 13:36

answered Aug 28, 2011 at 13:23

Milimetric

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