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("alert(message);return false")