function disable_right_click(e) {
 var browser = navigator.appName.substring(0,9);
 var event_number = 0;
 if (browser=="Microsoft") {
 event_number = event.button;
 }
 if ( event_number==2 || event_number==3 ) {
  return (false);
 }
 return true;
}

// function to check mouse key in IE
function check_mousekey() {
 var mouse_key = 93;
 var keycode = event.keyCode;
 if (keycode == mouse_key) {} 
}

// function to trap page mouse key events in IE
function trap_page_mouse_key_events() {
 var browser = navigator.appName.substring(0, 9);
 document.onmousedown = disable_right_click;
 if ( browser == "Microsoft" ) {
  document.onkeydown = check_mousekey;
 }
}

// onload event handler
window.onload = trap_page_mouse_key_events;

// catchall
document.oncontextmenu = function() {
// alert('right click disabled');
 return false;
}

function enterKeyCheck(e) {
	if (e && e.keyCode == 13) {
		return false;
	}
	return true;
}

function enterKeyCheck2(e) {
	if (e && e.keyCode == 13) {
		return false;
	}
	return true;
}