Using no right click with refresh script for webcam pop-up

I am having issues with CoffeeCup pop-up webcam script. My refresh is set for 16 seconds but during traffic it is only refreshing every 2 minutes. I have checked with my ISP (cable) and there is not a problem with the images loading every 16 seconds to the host. I checked with the host, BlueDomino, and there is not an issue with my bandwidth. The CoffeeCup support agent said that it may be a conflict with the no right click script that I was told to add and that I need an onload script. I reviewed the FAQs and previous topics here, but I do not understand how to use it. Could someone explain it in laymans terms? Is it really necessary to have the no right click script to prevent WCW? Thanks!

Pop-up Webcam Window (http://www.quantumleapfarm.com/webcam.html)

<script language="Javascript">
<!--
function refreshCam(){
rfsh = new Date() ; rfsh = "?"+rfsh.getTime()
document.images["webcam"].src = "webcam.jpg"+rfsh
setTimeout("refreshCam()", 16000) // 16 Secs
}
//-->
</script>

<script language="Javascript1.2">
am = "No WCW, please!";
bV = parseInt (navigator.appVersion)
bNS = navigator.appName=="Netscape"
bIE = navigator.appName=="Microsoft Internet Explorer"
function nrc(e) {
if (bNS && e.which > 1) {
alert(am)
return false
} else if (bIE && (event.button >1)) {
alert(am)
return false;
}
}
document.onmousedown = nrc;
if (document.layers) window.captureEvents(Event.MOUSEDOWN);
if (bNS && bV<5) window.onmousedown = nrc;
</script>

No need for the right click script. See discussions on the "block source codes" link in my sig for details.

Thanks for your help. I'll remove the no right click script until I figure something else out. Learning Java is too much for my sleep deprived brain right now ... have to wait until breeding season is over. But, I am making it a priority this summer.