var clickmessage="Oh, oh! ;-)"
	
	function disableclick(e) {
	if (document.all) {
	if (event.button==2||event.button==3) {
	if (event.srcElement.tagName=="IMG"){
	alert(clickmessage);
	return false;
	}
	}
	}
	else if (document.layers) {
	if (e.which == 3) {
	alert(clickmessage);
	return false;
	}
	}
	else if (document.getElementById){
	if (e.which==3&&e.target.tagName=="IMG"){
	alert(clickmessage)
	return false
	}
	}
	}
	
	function associateimages(){
	for(i=0;i<document.images.length;i++)
	document.images[i].onmousedown=disableclick;
	}
	
	if (document.all)
	document.onmousedown=disableclick
	else if (document.getElementById)
	document.onmouseup=disableclick
	else if (document.layers)
	associateimages()