// Alerts message when right-click on an image

var clickmessage="These images are under copyright";

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();
}