<script type="text/javascript">
function nocontext(e) {
var clickedTag = (e==null) ? event.srcElement.tagName : e.target.tagName;
if (clickedTag == "IMG")
return false;
}
document.oncontextmenu = nocontext;
</script>
Once you've pasted the code, click Save and return to the home menu. From there, we need to enter some custom CSS. To enter the CSS, click Design → Custom CSS. For more help on entering custom CSS, check out our CSS tutorial. In the text box, paste the following code
img {
-moz-user-select: none;
-webkit-user-select: none;
-ms-user-select: none;
user-select: none;
-webkit-user-drag: none;
user-drag: none;
-webkit-touch-callout: none;
}
That's all....