jQuery - Change image src on hover

Question

Basically I want to change the image src to add -active.png on hover.

So fb.png would become fb-active.png on hover, and fb.png when it's not hovering.

I'm not too sure what I am doing wrong so I'll post my code so far:-

HTML

        <div id="main-contact" class="right">

            <div id="main-social">

                <a href="#!"><img class="img-social" alt="Company - Facebook" class="left" src="images/fb.png" /></a>

                <a href="#!"><img class="img-social" alt="Company - Twitter" class="left" src="images/twitter.png" /></a>

                <a href="#!"><img class="img-social" alt="Company - LinkedIn" class="left" src="images/linkedin.png" /></a>

                <a href="#!"><img class="img-social" alt="Company - Word Press" class="left" src="images/wordpress.png" /></a>               

            </div>

        </div>

jQUERY

$(document).ready(function() {

$(function(){
    var regexactive = /-active\..*$/;

    var ct = $('#main-social');
    var imgs = $('.img-social img', ct);

    function activateImage(imgs){
        imgs.each(function(){
            var img = $(this);
            var src = img.attr('src');
            if( !regexactive.test(src) ){
                img.attr('src', src.replace('.png', '-active.png'))
            }
        });
    }

    ct.on('hover', '.img-social', function(){


        var img = $('.img-social img');
        activateImage(img);
    });
});

});

Answer 1

You could do this just in CSS if you don't need to be compliant with older browsers.

To do it in jquery, you can try something like this:

$(".img-social").hover(function(){
    $(this).attr("src", function(index, attr){
        return attr.replace(".png", "-active.png");
    });
}, function(){
    $(this).attr("src", function(index, attr){
        return attr.replace("-active.png", ".png");
    });
});

Answer 2

This can be done without javascript, with only css. Like this:

Give different classes for icons like fb for facebook,tw or twitter and so on.

HTML:

<div id="main-social">    
    <a href="#!"><span class="img-social fb left" title="Company - Facebook"></span></a>
    <a href="#!"><span class="img-social tw left" title="Company - Twitter"></span></a>
    <a href="#!"><span class="img-social ln left" title="Company - LinkedIn"></span></a> 
    <a href="#!"><span class="img-social wp left" title="Company - Word Press"></span></a> 
</div>

CSS:

.img-social{display:inline-block;height:20px;width:20px;}
.fb{background:url("images/fb.png");}
.fb:hover{background:url("images/fb-active.png");}
.tw{background:url("images/twitter.png");}
.tw:hover{background:url("images/twitter-active.png");}
.ln{background:url("images/linkedin.png");}
.ln:hover{background:url("images/linkedin-active.png");}
.wp{background:url("images/wordpress.png");}
.wp:hover{background:url("images/wordpress-active.png");}

You can use sprite for efficiency.