you could use this:
$('img').bind('contextmenu', function(e) {
return false;
});
or this other solution that you can find in this guy blog:
function nocontext(e) {
var clickedTag = (e==null) ? event.srcElement.tagName : e.target.tagName;
if (clickedTag == "IMG") {
alert(alertMsg);
return false;
}
}
var alertMsg = "Image context menu is disabled";
document.oncontextmenu = nocontext;
or you could use something like this to plugin to manage or make right click menus, according to their docs and sample you only need this to create a custom menu
var menu1 = [
{'Option 1':function(menuItem,menu) { alert("You clicked Option 1!"); } },
$.contextMenu.separator,
{'Option 2':function(menuItem,menu) { alert("You clicked Option 2!"); } }
];
$(function() {
$('.cmenu1').contextMenu(menu1,{theme:'vista'});
});
But check it out and do whatever works better for you.