Passing javascript variables to Perl CGI

Harch84 has asked for the wisdom of the Perl Monks concerning the following question:

Hi I have a html page with javascript in it that assigns a set of coordinates to javascript variables. The question I have is how can I then send these variables to a Perl CGI script using a submit on a html form. An example of some of the code below:

    var map;
    var geocoder = null;
    var addressMarker;
    var originpoint = null;

....................


function showAddress(address) {
      if (geocoder) {
        geocoder.getLatLng(address,
          function(point1) {
            if (!point1) {
              alert(address + " not found");
            } else {
              if (addressMarker) {
                map.removeOverlay(addressMarker);
              }
              addressMarker = new GMarker(point1);
              map.setCenter(point1, 15);
              map.addOverlay(addressMarker);
              originpoint = point1;
              alert("origin is now: "+originpoint+" destination is now
+: "+destinationpoint);
            }
          }
        );
      }
    }

<body onload="load()" onunload="GUnload()">
    <form action="#" onsubmit="showAddress(this.address.value); return
+ false">
      <p>
 Origin:<input type="text" size="50" id="addressInput" name="address" 
+value="London, UK" />
        <input type="submit" value="Show Origin" />
      </p>
    </form>
[download]

Now I want to be able to store the variable "originpoint" and using another form to submit it to the perl CGI script. Any ideas?

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