var SourceProtectionMsg = "-";

function click() { 

	if ( event.button == 2) {
		alert(SourceProtectionMsg);
	} 

} 

function keydown() {
	
	if( event.keyCode == 115 ) {
		event.returnValue = true;
	} else {
		event.returnValue = true;
	}
}

document.onmousedown = click; 
document.onkeydown = keydown;

if( document.oncontextmenu == null ) {
	window.document.oncontextmenu = new Function("return false");
	window.document.onselectstart = new Function("return false"); 
	window.document.ondragstart = new Function("return false"); 
}