document.oncontextmenu = function() { return false; }
document.ondragstart = function() { return false; }
document.onselectstart = function() { return false; }

if (!is.safari) {
	if(document.layers) {
		 window.captureEvents(Event.MOUSEDOWN);
		 window.onmousedown = function(e){
				 if(e.target==document) return false;
		 }
	} else {
		document.onmousedown = function(){ return false; }
	}
}