function disableRightClick(e)
{
if(!document.rightClickDisabled) // initialize
{
if(document.layers) 
{
document.captureEvents(Event.MOUSEDOWN);
document.onmousedown = disableRightClick;
}
else document.oncontextmenu = disableRightClick;
return document.rightClickDisabled = true;
}
if(document.layers || (document.getElementById && !document.all))
{
if (e.which==2||e.which==3) return false;
}
else return false;
}
disableRightClick();