function click(){
	if (document.all){
		if (event.button==2||event.button==3){oncontextmenu = 'return false';}
	}else{
		var eve = "";
		if (eve.button==2||eve.button==3){oncontextmenu = 'return false';}
	}
}
document.onmousedown = click
document.oncontextmenu = new Function("return false;")