[Javascript] Test or Identify Value of Submit Button's Assigned Value

[Ron Wingfield]

I have defined some submit buttons, e.g., assoc/w "Inquire", "Update", etc.,  as follows:

  $cgi-> submit(-name=>"action", -value=>"Inquire"),
  $cgi-> submit(-name=>"action", -value=>"Update"),

Regarding the first "if" condition in the following JavaScript code (from the checkForm function executed -onsubmit), the value of  " form["action"].value " is undefined (. . .at least at the point in my code); however, the value of " form[''name"].value " is the value as typed in the form's Name field.  
               if ( form["action"].value == "Update") {
                    if ( form["name"].value == "") {
                        alert("Name is required");
                    return false;
                    }
               }

Obviously, the following -onsubmit condition is executing the JavaScript.  In the client-side JavaScript, how do I test the value of the clicked submit button?  In other words, I need to know which submit button was clicked.

  $cgi->start_form(-action=>'vendors_01.pl',
                -method=>'GET',
                -name=>'vendors_01.pl',
                -onsubmit=>"return checkForm( this );" );
Thanks,
Ron Wingfield

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