var errormsg="Welcome to www.flotravels.com";
function mouseclick(evt)
{
if (document.layers)
rc = (evt.which==3);
if (document.all)
rc = (event.button==2);
if (rc)
{
alert(errormsg);
return false;
}
}
if (document.layers)
{ document.captureEvents(Event.MOUSEDOWN);
} 
document.onmousedown=mouseclick;