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discount script

Discuss discount script in the JavaScript Development forum on Dev Articles.
discount script JavaScript Development forum discussing the use of JavaScript and its features as a powerful DOM manipulator. JavaScript is used in most websites to enrich the interface and enhance the user experience.

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  #1  
Old May 4th, 2005, 06:23 AM
juanmanuelsanch juanmanuelsanch is offline
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discount script
hi all !
I have no idea on Java script but I need to know if this is possible.

From my server I get a bill and on that bill I can make discount on the total.

if I change the % textfield it should take the total and make the discount on it
and substitute the old total with the new one.

Can you give me an example on how to do it ?
THanks!
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  #2  
Old May 4th, 2005, 07:02 AM
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ChiefWigs1982 ChiefWigs1982 is offline
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Come on mate, throw us a bone.

Show us the code you have so far...
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  #3  
Old May 4th, 2005, 09:09 AM
juanmanuelsanch juanmanuelsanch is offline
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Quote:
Originally Posted by Agent47
Come on mate, throw us a bone.

Show us the code you have so far...

I dont have any code yet... I just need to know if what Im
asking its possible. With out any redirections....

Thanks!
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  #4  
Old May 4th, 2005, 11:19 AM
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ChiefWigs1982 ChiefWigs1982 is offline
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Yes, it is.
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  #5  
Old May 4th, 2005, 01:57 PM
juanmanuelsanch juanmanuelsanch is offline
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Quote:
Originally Posted by Agent47
Yes, it is.


Ok ! thanks ! But as I said I have no idea on javascript. So I will do my best.

Code:
 <script language="JavaScript">  
function discount(percent,total)
{
alert("Discount function");
discount= percent/100;
total= (total -(total*discount));
}
</script>


What I dont know its how to subtitute the old total with the new one. Any help
on that is appreciated.
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  #6  
Old May 4th, 2005, 05:14 PM
juanmanuelsanch juanmanuelsanch is offline
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Code:
 
<script language="JavaScript" type="text/javascript">
function discount(percent,total) 
{
var total2=0;
var discount=0;
alert("Función descuento");
discount= (percent/100);
document.write(discount);
total2= (total -(total*discount));
} 
</script>

This is my last code... so I need to know how to replace the old total with the new one.

Also how do I do to make the percent (parameter of my function) the value of a textefield? I want the function to
take the value from that textfield that its the one thats also calling the javascript
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  #7  
Old May 5th, 2005, 01:40 PM
juanmanuelsanch juanmanuelsanch is offline
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Agent47 can you help me here with the code please ? I really need it .

Thanks!
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  #8  
Old May 5th, 2005, 03:33 PM
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You can't document.write() anything once the page has finished
loading. We need to see your corresponding html code too...
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  #9  
Old May 5th, 2005, 04:54 PM
juanmanuelsanch juanmanuelsanch is offline
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Quote:
Originally Posted by Agent47
You can't document.write() anything once the page has finished
loading. We need to see your corresponding html code too...


Then why you said that what I was looking for was possible ?

here is my code its kinda huge
PHP Code:
[CODE] 
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<title>Factura a persona</title>
<style type="text/css">
<!--
.style19 {font-size: 12px}
.style20 {font-family: Arial, Helvetica, sans-serif; font-weight: bold; font-size: 12px; }
.style23 {font-size: 12px; font-weight: bold; }
.style24 {font-family: Arial, Helvetica, sans-serif}
.style25 {font-family: Arial, Helvetica, sans-serif; font-size: 12px; }
.style26 {color: #000000}
-->
</style>
</head>
<body>
<form name="form1" method="post" action="SvMedex" id="form1">
<table width="724" height="354" border="0" align="center">
     <tr>
     <td width="156" height="120"><div align="justify" class="style19">Centro Mecat 1, S.L<br>
         NIF: B-62996319 <br>
         Tlf:(34) 93 208 23 20 <br>
         Fax:(34) 93 458 94 64 <br>
         Calle Mallorca 285 (cruce con Roger de Lluria)<br>
     Barcelona, 08307</div></td>
     <td width="169"><div align="center"></div></td>
     <td width="288"><div align="center"><span class="style19"><img src="/Medex/Imagenes/medex.jpg" width="93" height="93"></span></div></td>
     <td width="93">&nbsp;</td>
    </tr>
 
    <tr>
     <td height="21"><span class="style19"></span></td>
     <td><span class="style19"></span></td>
     <td><div align="center"><span class="style19"></span></div></td>
     <td><span class="style19"></span></td>
    </tr>
 
    <tr>
     <td height="21"><span class="style19">Fecha: 05/mayo/2005
        <input type="hidden" name="fecha" value="05/mayo/2005">
     </span></td>
 
     <td><span class="style19"></span></td>
     <td><div align="center"><span class="style19"></span></div></td>
     <td><span class="style19"></span></td>
    </tr>
    <tr>
     <td height="21"><p class="style19">N° de factura: 5 - 2005 </p>     </td>
     <td><span class="style19"></span></td>
     <td><div align="center"><span class="style19"></span></div></td>
     <td><span class="style19"></span></td>
    </tr>
    <tr>
     <td height="21"><span class="style19"><strong>Datos del cliente:</strong></span></td>
     <td><span class="style19"></span></td>
     <td><div align="center"><span class="style19"></span></div></td>
     <td><span class="style19"></span></td>
    </tr>
    <tr>
     <td height="21"><span class="style19">Nombre:<strong> Juan Manuel Sanchez Cuellar
        <input type="hidden" name="nombre" value="Juan Manuel Sanchez Cuellar">
     </strong></span></td>
<td><span class="style19"></span></td>
     <td><div align="center"><span class="style19"></span></div></td>
     <td><span class="style19"></span></td>
    </tr>
    <tr>
     <td height="21"><span class="style19">Direccion: <strong></strong></span></td>
     <td><span class="style19"></span></td>
     <td><div align="center"><span class="style19"></span></div></td>
     <td><span class="style19"></span></td>
    </tr>
    <tr>
     <td height="21"><span class="style19">CP: <strong>08190</strong></span></td>
     <td><span class="style19"></span></td>
     <td><div align="center"><span class="style19"></span></div></td>
     <td><span class="style19"></span></td>
    </tr>
    <tr>
     <td height="21"><span class="style19">Provincia:<strong> Barcelona </strong></span></td>
     <td><span class="style19"></span></td>
     <td><div align="center"><span class="style19"></span></div></td>
     <td><span class="style19"></span></td>
    </tr>
    <tr>
     <td height="21"><span class="style19">DNI/CIF: <strong>53293426 -B<strong><strong><strong>
        <input type="hidden" name="DNI" value="53293426 -B">
     </strong></strong></strong></strong></span></td>
<td><span class="style19"></span></td>
     <td><div align="center"><span class="style19"></span></div></td>
     <td><span class="style19"></span></td>
    </tr>
    <tr>
     <td height="21">&nbsp;</td>
     <td>&nbsp;</td>
     <td><div align="center"></div></td>
     <td>&nbsp;</td>
    </tr>
</table>
<table height="241" border="0" align="center">
    <tr bordercolor="#000000">
     <td width="161" height="17" class="style19"><div align="center" class="style24">
         <div align="center"><span class="style23">Descripción:</span></div>
     </div></td>
     <td width="160" class="style19"><div align="center" class="style24">
         <div align="center"><span class="style23">Unidades:</span></div>
     </div></td>
     <td width="67" class="style19" ><div align="center" class="style24">
         <div align="center"><span class="style23">Cantidad:</span></div>
     </div></td>
     <td width="147" ><div align="center" class="style20">
         <div align="center">Precio Unitario:</div>
     </div></td>
     <td width="150" ><div align="center" class="style20">
         <div align="center">Monto:</div>
     </div></td>
    </tr>
    <tr>
     <td height="17" width="161" ><div align="center" class="style25">
         Fortalecimiento general </div></td>
     <td width="160" ><div align="center" class="style25">
         <div align="center">Mensualidad </div>
     </div></td>
     <td width="67" ><div align="center" class="style25">
         <div align="center">1</div>
     </div></td>
     <td width="147" ><div align="center" class="style25">