var message="Sorry, the content of this site is copywrited";
function clickIE(e) {if (navigator.appName == 'Microsoft Internet Explorer' && 
(event.button == 2 || event.button == 3)) {
alert(message);
return false;
}
}
function clickNS(e) {
if(document.layers||(document.getElementById&&!document.all)) {
if (e.which==2||e.which==3) {
	alert(message);
	return false;
	}}}
	
if (document.layers){document.captureEvents(Event.MOUSEDOWN);document.onmousedown=clickNS;}
else if (navigator.appName == 'Microsoft Internet Explorer') {   
   document.onmousedown=clickIE;
}	
else { document.onmouseup=clickNS; document.oncontextmenu=clickIE;}
document.oncontextmenu=new Function("return false");