//var message="Resolução mínima de 800x600 © Copyright 2007, IAK - Informática e Arte Kuhlmann's";

function clickIE4(){
        if (event.button==2){
                //alert(message);
                return false;}
}
function clickNS4(e){
        if (document.layers||document.getElementById&&!document.all){
                if (e.which==2||e.which==3){
                        //alert(message);
                        return false;}
        }
}

if (document.layers){
        document.captureEvents(Event.MOUSEDOWN);
        document.onmousedown=clickNS4;}
else if (document.all&&!document.getElementById){
        document.onmousedown=clickIE4;}

document.oncontextmenu=new Function("return false")