function disableselect(e){
return false
}
function reEnable(){
return true
}
//if IE4+
document.onselectstart=new Function ("return false")
//if NS6
if (window.sidebar){
document.onmousedown=disableselect
document.onclick=reEnable
}

if (window.Event) document.captureEvents(Event.MOUSEUP); 
function nocontextmenu(){event.cancelBubble = true 
event.returnValue = false; return false;} 
function norightclick(e){if (window.Event) 
{if (e.which == 2 || e.which == 3)return false; } 
else if (event.button == 2 || event.button == 3){ 
event.cancelBubble = true;event.returnValue = false; 
return false;}} 
document.oncontextmenu = nocontextmenu; 
document.onmousedown = norightclick;