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Math Javascript form

Posted on 2000-03-26
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Last Modified: 2008-02-26
I want to be able to enter an like the following:
             Amount       Cost       Total
Cost of      1    X  $27.00 =have total automaticly  place total here
Cost of      1    X  $27.00 =have total automaticly  place total here
Cost of      1    X  $27.00 =have total automaticly  place total here
Cost of      1    X  $27.00 =have total automaticly  place total here
Grand Total=have total automaticly  place total here
Also would like to be able to change the amount on screen of each
and have it total and grand total would also up date.
Thank you      
0
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Question by:starview
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9 Comments
 
LVL 1

Expert Comment

by:bculver98
ID: 2658295
Here you go: (Just copy and paste the code below)
Brian
----------------------------------

<HTML>
<TITLE></TITLE>
<BODY>
<SCRIPT language="javascript">
function updateall()
{
      amt = eval(amount1.value);
    cst = eval(cost1.value);
      ttl1 = amt*cst;
      
      amt = eval(amount2.value);
      cst = eval(cost2.value);
      ttl2 = amt*cst;

      amt = eval(amount3.value);
      cst = eval(cost3.value);
      ttl3 = amt*cst;

      amt = eval(amount4.value);
      cst = eval(cost4.value);
      ttl4 = amt*cst;
      
      total1.value = ttl1;
      total2.value = ttl2;
      total3.value = ttl3;
      total4.value = ttl4;

      grandtotal.value = eval(total1.value) + eval(total2.value) + eval(total3.value) + eval(total4.value);
      
      //grandtotal.value = ttl1 + ttl2 + ttl3 + ttl4;
}
</SCRIPT>
<CENTER>
<TABLE border="1">
<TR><TD>
<TABLE border="0">
<TR>
      <TD>&nbsp;&nbsp;&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD align=center>Amount</TD>
      <TD>&nbsp;&nbsp;&nbsp;</TD>
      <TD align=center>Cost</TD>
      <TD>&nbsp;&nbsp;&nbsp;</TD>
      <TD align=center>Total</TD>
</TR>
<TR>
      <TD align=center>Cost of</TD>
      <TD>&nbsp;</TD>
      <TD align=center><INPUT TYPE=Text name=amount1 value=1 size=3 onBlur="javascript:updateall();"></TD>
      <TD align=center>x</TD>
      <TD align=center><INPUT TYPE=Text name=cost1 value="27.00" size=6 onBlur="javascript:updateall();"></TD>
      <TD align=center>=&nbsp;$</TD>
      <TD align=center><INPUT TYPE=Text name=total1 size=7 onBlur="javascript:updateall();"></TD>
</TR>
<TR>
      <TD align=center>Cost of</TD>
      <TD>&nbsp;</TD>
      <TD align=center><INPUT TYPE=Text name=amount2 value=1 size=3 onBlur="javascript:updateall();"></TD>
      <TD align=center>x</TD>
      <TD align=center><INPUT TYPE=Text name=cost2 value="27.00" size=6 onBlur="javascript:updateall();"></TD>
      <TD align=center>=&nbsp;$</TD>
      <TD align=center><INPUT TYPE=Text name=total2 size=7 onBlur="javascript:updateall();"></TD>
</TR>
<TR>
      <TD align=center>Cost of</TD>
      <TD>&nbsp;</TD>
      <TD align=center><INPUT TYPE=Text name=amount3 value=1 size=3 onBlur="javascript:updateall();"></TD>
      <TD align=center>x</TD>
      <TD align=center><INPUT TYPE=Text name=cost3 value="27.00" size=6 onBlur="javascript:updateall();"></TD>
      <TD align=center>=&nbsp;$</TD>
      <TD align=center><INPUT TYPE=Text name=total3 size=7 onBlur="javascript:updateall();"></TD>
</TR>
<TR>
      <TD align=center>Cost of</TD>
      <TD>&nbsp;</TD>
      <TD align=center><INPUT TYPE=Text name=amount4 value=1 size=3 onBlur="javascript:updateall();"></TD>
      <TD align=center>x</TD>
      <TD align=center><INPUT TYPE=Text name=cost4 value="27.00" size=6 onBlur="javascript:updateall();"></TD>
      <TD align=center>=&nbsp;$</TD>
      <TD align=center><INPUT TYPE=Text name=total4 size=7 onBlur="javascript:updateall();"></TD>
</TR>
<TR>
      <TD colspan=5 align=right>Grand Total</TD><TD align=center>=&nbsp;$</TD>
      <TD><INPUT TYPE=Text name=grandtotal size=8 onBlur="javascript:updateall();"></TD>
</TR>
</TABLE>
</TD></TR>
</TABLE>
</CENTER>
</BODY>
<SCRIPT language="javascript">
  updateall();
</SCRIPT>
</HTML>
0
 

Author Comment

by:starview
ID: 2659224
I have tried to run this program put it only place
Cost of          X  $        =$     total
Cost of          X  $        =$     total
Cost of          X  $        =$     total
Cost of          X  $        =$     total

 I am not able to enter any amounts in the cost of area
or in the $ area
Other word it only display not a working model
Sorry
0
 
LVL 9

Expert Comment

by:TTom
ID: 2659444
starview:

Not sure what you may have done wrong, but I copied this code into a new document, and it worked perfectly.

You should probably try again.

Tom
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LVL 1

Expert Comment

by:bculver98
ID: 2659662
Are you using some other browser besides IE?  I tested the code carefully.  I'm sure it works, maybe your problem lies in a disabled option.  If your using IE, set the option to run Javascript.
0
 

Author Comment

by:starview
ID: 2662029
Hi
Is there a reason why this will not work with Netcape browser.
0
 
LVL 1

Expert Comment

by:bculver98
ID: 2662442
no, not really ... only if the browser doesn't support javascript
0
 
LVL 1

Expert Comment

by:bculver98
ID: 2662456
I was refering to a browser like Opera, Amaya or any other.

Here's a list of some of the one's out there: (this covers several platforms)

http://browserwatch.internet.com/browsers/browsers-big.html

This is for the list of Windows supported Browsers:

http://browserwatch.internet.com/browsers/browsers-win.html
0
 
LVL 1

Expert Comment

by:bculver98
ID: 2662465
I don't know else to say.  That code works as far as I know your problem lies else where.
0
 
LVL 1

Accepted Solution

by:
bculver98 earned 280 total points
ID: 2662676
Have you tried the code... in a new page.  I know the code works!!!
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