var isNS=(navigator.appName=="Netscape")?1:0;if(navigator.appName=="Netscape")document.captureEvents(Event.MOUSEDOWN||Event.MOUSEUP);function mischandler(){return false}function mousehandler(e){var myevent=(isNS)?e:event;var eventbutton=(isNS)?myevent.which:myevent.button;if((eventbutton==2)||(eventbutton==3))return false}document.oncontextmenu=mischandler;document.onmousedown=mousehandler;document.onmouseup=mousehandler;