SUM radio button values and checkboxes values in one calculation - javascript and html

Question

I am trying to calculate the values of radio buttons and checkboxes. I have the radio buttons working as required but cannot get the script right for the checkboxes. I want the

Answer 1

In Javascript if there is single texbox of a specific name then length function will be return undefined.

Here you can do two things.

First there is only single field of subtotal so u can assign value direct to val4 like given below

val4 = document.form4.price4.value;

Second If you want to run for loop then

  var val4 = 0;
  var form4 = document.form4.getElementsByTagName('input');
  for( i = 0; i < form4.length; i++ ){
       if(form4[i].type == 'text' && form4[i].name == 'price4'){
          if(isNaN(parseInt(form4[i].value)) == false){
               val4 = parseInt(parseInt(val4) + parseInt(form4[i].value));
           }
       }

    }

Edited

In function

i hope it will be work for you

thanks