Make images not selectable

Question

I am making a website in dreamweaver CS5. I exported the images from photoshop an inserted them into a table. When I view the site all the images are selectable(you are able to drag them to your desktop). How do I change this??? I want to do it with an onclick method in addition how would I achieve this?

<td><img src="images/people_03.png" name="one" width="1000" height="156" id="one" ONCLICK="closeimages();"/></td>

Answer 1

I stumbled upon this question while struggling with the same problem but the accepted answer was not a possible solution for me.

I used the info found here , in particular adding the following styles to my body, inside the css (this worked for me in Firefox, Chrome and Opera, I cannot test for IE)

-moz-user-select: none;
-webkit-user-select: none;
user-select: none;

The unselectable html tag seems also helpful, but it's apparently supported only by IE and Opera:

<img src="1.jpg" unselectable="on">

as well as the javascript solution, that is said to work on IE and webkit browsers:

<script>
window.onload = function() {
    document.body.onselectstart = function() {
        return false;
    }
}
</script>

Note. As Albert Renshaw pointed in the comment this method no longer works in Chrome > 50.