insert current dollar.

**miguel_q** · 05-25-2012 03:27 PM

Hi i need some help inserting current dollar into a calculating form.
here i get the current dollar:http://www.bcb.gob.bo/rss_bcb.php

But i dont know how to put this on a field in javascript so that i can use it.
the form is:
<HTML>
<HEAD>
<TITLE>Simple Adder</TITLE>

<SCRIPT LANGUAGE="JavaScript">
function CalculateSum(Atext, Btext, form)
{
var A = parseFloat(Atext);
var B = parseFloat(Btext);
form.Answer.value = A + B;
}

function ClearForm(form)
{
form.input_A.value = "";
form.input_B.value = "";
form.Answer.value = "";
}

// end of JavaScript functions -->
</SCRIPT>
</HEAD>

<BODY>

<P><FONT SIZE="+2">Simple Adder</FONT></P>

<FORM NAME="Calculator" METHOD="post">
<P>Enter a number: <INPUT TYPE=TEXT NAME="input_A" SIZE=10></P>
<P>Enter a number: <INPUT TYPE=TEXT NAME="input_B" SIZE=10></P>
<P><INPUT TYPE="button" VALUE="Add Numbers" name="AddButton" onClick="CalculateSum(this.form.input_A.value, this.form.input_B.value, this.form)"></P>
<P><INPUT TYPE="button" VALUE="Clear Fields" name="ClearButton" onClick="ClearForm(this.form)"></P>
<P>Answer = <INPUT TYPE=TEXT NAME="Answer" SIZE=12></P>
</FORM>

</BODY>
</HTML>

And i would like to put the value in field b.
please help me whit some ideas

**JMRKER** · 05-26-2012 07:35 PM

What is the problem?
Please explain here as I don't normally subscribe to RSS feeds to find the question.

What value do you wish to put into field b? (assumed to be "input_B" ?)

**miguel_q** · 05-28-2012 01:35 PM

Originally Posted by JMRKER

What is the problem?
Please explain here as I don't normally subscribe to RSS feeds to find the question.

What value do you wish to put into field b? (assumed to be "input_B" ?)

I want that the current dollar of today will automatically inserted in input_B and i want it from the rrs. i mentioned

**007Julien** · 05-28-2012 05:15 PM

There is not only a javascript question. See this page for the BCE (with a tab for developpers) an or the equivalent with your bank and build a better convertisseur-calculator like this one (which use the Reverse Polish notation with the keyPad).

**xelawho** · 05-28-2012 06:53 PM

you can use something like the below. I didn't know if you wanted to use the compra or venta price - you can change that in the regex inside the get_price function

Code:

<html>
  <head>
  </head>
  <body>


<P><FONT SIZE="+2">Simple Adder</FONT></P>

<FORM NAME="Calculator" METHOD="post">
<P>Enter a number: <INPUT TYPE=TEXT NAME="input_A" SIZE=10></P>
<P>Enter a number: <INPUT TYPE=TEXT NAME="input_B" SIZE=10></P>
<P><INPUT TYPE="button" VALUE="Add Numbers" name="AddButton" onClick="CalculateSum(this.form.input_A.value, this.form.input_B.value, this.form)"></P>
<P><INPUT TYPE="button" VALUE="Clear Fields" name="ClearButton" onClick="ClearForm(this.form)"></P>
<P>Answer = <INPUT TYPE=TEXT NAME="Answer" SIZE=12></P>
</FORM>
<script type="text/javascript">
function get_price(o){
      var price = o.query.results.item[0].title.replace(/.*Bs([^]*)compra.*/,'$1').replace(",",".");
      document.Calculator.input_B.value = price;  
    }
	
function CalculateSum(Atext, Btext, form)
{
var A = parseFloat(Atext);
var B = parseFloat(Btext);
form.Answer.value = A + B;
}

function ClearForm(form)
{
form.input_A.value = "";
form.input_B.value = "";
form.Answer.value = "";
}

// end of JavaScript functions -->
</script>
 <script src='http://query.yahooapis.com/v1/public/yql?q=select&#37;20*%20from%20rss%20where%20url%3D%22http%3A%2F%2Fwww.bcb.gob.bo%2Frss_bcb.php%2F%22&format=json&callback=get_price'>
  </script>
  </body>
</html>

**xelawho** · 05-28-2012 08:23 PM

oops - IE didn't like that regex, and I've been playing around with the uri encoding to make it more human-friendly. try this one:

Code:

<html>
  <head>
  </head>
  <body>


<P><FONT SIZE="+2">Simple Adder</FONT></P>

<FORM NAME="Calculator" METHOD="post">
<P>Enter a number: <INPUT TYPE=TEXT NAME="input_A" SIZE=10></P>
<P>Enter a number: <INPUT TYPE=TEXT NAME="input_B" SIZE=10></P>
<P><INPUT TYPE="button" VALUE="Add Numbers" name="AddButton" onClick="CalculateSum(this.form.input_A.value, this.form.input_B.value, this.form)"></P>
<P><INPUT TYPE="button" VALUE="Clear Fields" name="ClearButton" onClick="ClearForm(this.form)"></P>
<P>Answer = <INPUT TYPE=TEXT NAME="Answer" SIZE=12></P>
</FORM>
<script type="text/javascript">
function get_price(o){
      var price = o.query.results.item[0].title.replace(/.*Bs([^*]*)compra.*/,'$1').replace(",",".");
      document.Calculator.input_B.value = price;  
    }
	
function CalculateSum(Atext, Btext, form)
{
var A = parseFloat(Atext);
var B = parseFloat(Btext);
form.Answer.value = A + B;
}

function ClearForm(form)
{
form.input_A.value = "";
form.input_B.value = "";
form.Answer.value = "";
}

var myurl=encodeURIComponent("http://www.bcb.gob.bo/rss_bcb.php")

scr=document.createElement("script");
scr.type="text/javascript"
scr.src='http://query.yahooapis.com/v1/public/yql?q=select%20*%20from%20rss%20where%20url%3D%22'+myurl+'%2F%22&format=json&callback=get_price';
document.body.appendChild(scr);

</script>


  </body>
</html>

**miguel_q** · 05-29-2012 08:32 AM

My friend you are the king of the kings i appreciate very much your help, i have a little problem dock it shows me text: Tipo de cambio Bs por 1 Dolar USA
and not the numbers of the venta field have you any solution?

**xelawho** · 05-29-2012 09:45 AM

oh, yeah - it looks like they changed their title field format

a safer way to do it is using the description field. if you want the venta price, you can change that line to this:

Code:

var price = o.query.results.item[0].description.replace(/.* Bs([^*]*);.*/,'$1').replace(",",".");

**miguel_q** · 05-29-2012 02:43 PM

thank you very much for the help!

Thread: insert current dollar.

Thread Tools

Display

insert current dollar.

insert current dollar

current dollar

current dollar

Thread Information

Users Browsing this Thread

Bookmarks

Bookmarks

Posting Permissions