javascript calculate multiple check boxes

Posted on 2009-05-08
Last Modified: 2012-05-06
Hi all,
I have been scouring all over google for an example.  I am looking for an example javascript that can calculate multiple textboxes...
Quantity * Value
Box1 * Box2
Box3 * Box4
= Total
Any examples will be appreciated.
Question by:newbe101
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2

Accepted Solution

Alsaibai earned 500 total points
ID: 24341600
I hope this will help you out...

<!-- Begin
function  doMath() {
var one = eval(document.theForm.elements[0].value)
var two = eval(document.theForm.elements[1].value)
var prod = one  *   two
alert("The product of "  +  one  +  " and "  +
two  +  " is "  +  prod  +  ".")
// End -->
<FORM NAME="theForm">
<INPUT TYPE="text">
<INPUT TYPE="text">
<INPUT TYPE="button" VALUE="Show result" onClick="doMath()">

Open in new window


Author Comment

ID: 24341605
thanks for the example... I am going to check it out.

Author Closing Comment

ID: 31579688
thanks... you got me going in the right direction

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
need help with share buttons 11 69
Drop down list show all elements but disabled for selection 6 34
JS library vs Js framework 11 23
arrays and radio buttons 10 39
This article discusses the difference between strict equality operator and equality operator in JavaScript. The Need: Because JavaScript performs an implicit type conversion when performing comparisons, we have to take this into account when wri…
This article discusses how to create an extensible mechanism for linked drop downs.
The viewer will learn the basics of jQuery, including how to invoke it on a web page. Reference your jQuery libraries: (CODE) Include your new external js/jQuery file: (CODE) Write your first lines of code to setup your site for jQuery.: (CODE)
The viewer will learn the basics of jQuery including how to code hide show and toggles. Reference your jQuery libraries: (CODE) Include your new external js/jQuery file: (CODE) Write your first lines of code to setup your site for jQuery…

749 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question