function nodown() {
	var AllImages = document.images;
	if (AllImages != null)
	{
		for (var i=0; i<AllImages.length; i++) {
			AllImages[i].oncontextmenu=function() {
				return false
			}
			AllImages[i].onselectstart=function() {
				return false
			}
			AllImages[i].ondragstart=function() {
				return false
			}
		}
	}
}
window.onload=nodown;