function click()
 {
	event.returnValue=false;
}

function click1() {
	if (event.button==2)
		event.returnValue=false;
}

function CtrlKeyDown()
{
	if (event.ctrlKey)
		event.returnValue=false;
}
document.onkeydown=CtrlKeyDown;
document.onselectstart=click;
document.onmousedown=click1;