/*
var message="So sorry!!!\nNo puedes guardar. ";

//alert(navigator.appName);


function clickIE() {if (document.all) {alert(message);return false;}}
function clickNS(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=clickNS;}
else{document.onmouseup=clickNS;document.oncontextmenu=clickIE;}

*/

 
<!-- JavaScript Start ----->

function click() {if (event.button==2) { alert('Disabled') } } document.onmousedown=click