Calculating Check Boxes? 1

[Rainman1234]

Hello All!

I am creating a form. (Atleast trying too!) On one spot on the form I have check boxes. You have 6 selections, but you can only choose 1. You also have 13 lines. On the 14th line they want the totals for the check boxes selected. I have exported all the values 1 through 6. (Column 1 = 1, Column 2 = 2 ...)I am having difficulty with the syntax. I have never used JavaScript before.
Here is my code so far:

if line1M.value = 1
TotalM1.value = TotalM1.value + 1;
if line1M.value = 2
TotalM2.value = TotalM2.value + 1;

'I would do the above code for colums 1-6 and lines 1-13.

I appreciate all inputs!

 

[mwolf00]

Look at this and let me know if you have more questions...

thread216-965713

Programming today is a race between software engineers striving to build better and bigger idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning. - Rick Cook (No, I'm not Rick)

 

[Rainman1234]

MWolf00,

First let me thank you for responding. I am still having difficulty. Below is my entire code for 1 total column (TotalM1 is the name). I refuse to do the rest until I can get past this.


<script>
function calculate(injuryTotals) {
if line1M.value = 1 {
TotalM1.value = TotalM1.value + 1 }
if line2M.value = 1 {
TotalM1.value = TotalM1.value + 1 }
if line3M.value = 1 {
TotalM1.value TotalM1.value + 1 } if line4M.value = 1 {
TotalM1.value TotalM1.value + 1 }
if line5M.value = 1 {
TotalM1.value TotalM1.value + 1 }
if line6M.value = 1 {
TotalM1.value TotalM1.value + 1 }
if line7M.value = 1 {
TotalM1.value TotalM1.value + 1 }
if line8M.value = 1 {
TotalM1.value TotalM1.value + 1 }
if line9M.value = 1 {
TotalM1.value TotalM1.value + 1 }
if line10M.value = 1 {
TotalM1.value TotalM1.value + 1 }
if line11M.value = 1 {
TotalM1.value TotalM1.value + 1 }
if line12M.value = 1 {
TotalM1.value TotalM1.value + 1 }
if line13M.value = 1 {
TotalM1.value TotalM1.value + 1 }
}
</script>

 

[mwolf00]

<script>
function calculate(){
allInputs = document.getElementsByTagName("input")
ttlM1 = 0
for (x=0; x<allInputs.length; x++){
if (allInputs[x].type == "checkbox"){
//now your looking at each checkbox
//since this checkbox name ends w/ "M" we can check for that
boxName = allInputs[x].name
if (boxName.substr(boxName.length-2,1) == "M" && allInputs[x].checked) ttlM1 ++
}
}
}
</script>

Programming today is a race between software engineers striving to build better and bigger idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning. - Rick Cook (No, I'm not Rick)

 

[trollacious]

Try something like:

<script language="javascript">
function calculate(injuryTotals)
{
var grandtotal=0, checkboxlimit=13;
var el=document.forms['formname'].elements;

for (var ci=1;ci<=checkboxlimit;ci++)
{
if (el['line' + ci + 'M'].value ==1)
{
grandtotal += el['line' + ci + 'M'].value * 1;
}
}
el['TotalM1'].value = grandtotal;
}
</script>

You also send the argument injuryTotals to the function, but don't ever do anything with it.

You'll have to replace formname with whatever the name of your form is.

Lee

 

[Rainman1234]

MWolf00 & Trollacious,

Thank you both for your inputs! I will try them both and let you know how it works out.

Thanks,

Rainman1234