// Disable right click
document.oncontextmenu=new Function("return false");

// Disable drag n drop for IE
document.ondragstart = function () { return false; };

// Disable drag n drop for FF
function noDrag() { return false }
function stopDrag() {
  for (i=0;i<document.images.length;i++) document.images[i].onmousedown=noDrag;
}