You might be able to block their right clicks--but won't be able to stop them from copying anything if they really want to.(i.e.-I don't know how to(am just 14))
This is the code I saw in
www.w3schools.com to find out which mouse button a user pressed(you could modify it a bit to block RMB Clicks).
<html>
<head>
<script type="text/javascript">
function whichButton(event)
{
if (event.button==1)
{
alert("You clicked the left mouse button!")
}
else
{
alert("You clicked the right mouse button!")
}
}
</script>
</head>
<body onmousedown="whichButton(event)">
<p>Click in the document. An alert box will alert which mouse button you clicked.</p>
</body>
</html>
This will surely reduce the no. of pictures copied.
Best of Luck.
