function clique() {
	if (event.button==2||event.button==3) {
		oncontextmenu='return false';
	}
}
document.onmousedown=clique
document.oncontextmenu = new Function("return false;")
function disableselect(e){
	return false
}
function reEnable(){
	return true
}
document.onselectstart=new Function ("return false")
if (window.sidebar){
	document.onmousedown=disableselect;
	document.onclick=reEnable;
}