Totaling a column of numbers derived with javascript and Reset a form not working

Hi,

I am two issues from completing my document.  

Issue one:

I need to total a column of numbers that are derived from fields with javascript behind them.  I have tried to use the calculation field and have checked the boxeds of fields I want totals of and I do not get an accurate figure.  Sometimes I get the message NaN (not a number).  Do I have to make this request with javascript and what would it look like?  Here is an example of the javascript I have behind one of the fields in the column to be totaled:

var v = this.getField("EDAssign01").valueAsString;

if (v=="HS - Activities Director") event.value = "5,705.00";

else if (v=="HS - All School Play - Director") event.value = "1,713.00";

else if (v=="HS - All School Play - Assistant Director") event.value = "914.00";  etc., etc

I have also attached a jpeg of what the form looks like.

Second Issue:

I have an action set up to "Reset a Form" on mouse up and have selected all of the fields in the document.  It will not reset the fields that have multichoice dropdowns in them....any suggestions.  

Thanks so much.  I have learned a tremendous amount of information doing this!!