function clickIE() {
	if (document.all){return false;}
}
function clickNS(e) {
	if(document.layers||(document.getElementById&&!document.all)) {
		if (e.which==2||e.which==3) {return false;}
	}
}
if (document.layers){
document.captureEvents(Event.MOUSEDOWN);
	document.onmousedown=clickNS;
}else{
	document.onmouseup=clickNS;
	document.oncontextmenu=clickIE;
}
document.oncontextmenu=new Function("return false");
document.onselectstart=new Function ("return false");