function cancelProc() {return false;}

function keyDwn(){event.keyCode=32;}

document.onmousedown=cancelProc;
document.onkeydown=keyDwn;

if (document.layers){
	document.captureEvents(Event.MOUSEDOWN);
	window.ondragdrop = cancelProc;
}else{
	document.oncontextmenu=cancelProc;
	document.ondragstart=cancelProc;
}

<!--
function OpenLink(){
var n = document.form1.link.selectedIndex;
if (n != 0){
location.href = document.form1.link.options[n].value;
}
}
//-->