function click(e) {
	if (document.all) {
		if (event.button==1||event.button==2||event.button==3) {
			oncontextmenu='return false';
		}
	}

	if (document.layers) {
		if (e.which == 3) {
			oncontextmenu='return false';
		}
	}
}

if (document.layers) {
	document.captureEvents(Event.MOUSEDOWN);
}

document.onmousedown=click;
document.oncontextmenu = new Function("return false;");

var omitformtags=["input", "textarea", "select"];
omitformtags=omitformtags.join("|");

function disableselect(e){
if (omitformtags.indexOf(e.target.tagName.toLowerCase())==-1)
	return false;
}

function reEnable(){
	return true;
}

if (typeof document.onselectstart!="undefined")
	document.onselectstart=new Function ("return false");
else {
	document.onmousedown=disableselect;
	document.onmouseup=reEnable;
}

if (document.layers)
	document.captureEvents(Event.KEYDOWN);