Can I use a loop? 1

hd65 · Jan 5, 2001

here is the script that works but I would need to enter about 500 if else statements and the same number of totals[*]. Is there a way I can shorten the script?
---------------------------------------------
function total() {
var totals = new Array();
if (document.total.pic1001){
totals[1] = document.total.pic1001.value;
}else{
totals[1] = "0";}
if (document.total.pic1002){
totals[2] = document.total.pic1002.value;
}else{
totals[2] = "0";}
if(document.total.pic1003){
totals[3] = document.total.pic1003.value;
}else{
totals[3] = "0";}
document.total.ordertotal.value = (totals[1])*1 + (totals[2])*1 + (totals[3])*1;
}
-----------------------------------------
thanks paul

jaredn · Jan 5, 2001

here, phew:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">

<html>
<head>
<title>Untitled</title>
<script>
function b(){
//somenum should equal the total number of fields you
//want to check and they must be named similarly
somenum=2
var totals=new Array();var cnt=1
for(var i=0;i<somenum;i++)
{
var fld=eval("document.total.pic100"+cnt+".value&quot

if(fld)
{
totals[totals.length]=fld
}
// alert(cnt)
cnt++
}
totalamt=0
for(var j=0;j<totals.length;j++)
{
totalamt+=new Number(totals[j])
}

document.total.ordertotal.value=totalamt
}
</script>
</head>

<body>
<form name="total">
<input type=text name="pic1001">
<input type=text name="pic1002">
<input type=text name="ordertotal">
</form>
<button onClick="b()"></button>
</body>
</html>
jared@aauser.com

hd65 · Jan 5, 2001

What if some of the objects are not used.ie
If <input type=text name="pic1001"> and <input type=text name="pic1003">
are the only ones.
I get the error 'document.total.pic1002.value' is not an object.
In my script the setting the totals[2]="0" takes care of it.

thanks
paul

jaredn · Jan 5, 2001

make sure you make the objects in order... jared@aauser.com

hd65 · Jan 5, 2001

I cant controll that the file is generated (CGI)
the objects are determined by a user selection.
bummer huh?

thanks
paul

jaredn · Jan 5, 2001

You need to somehow be able to set the somenum variable to include the correct ammount of fields...then this will work even if you misname them

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">

<html>
<head>
<title>Untitled</title>
<script>
function b(){
//somenum should equal the total number of fields you
//want to check and they must be named similarly
somenum=4
var totals=new Array();var cnt=1
for(var i=0;i<=somenum;i++)
{

var fld=eval("document.total.pic100"+cnt)
if(typeof(fld)=="undefined&quot

{cnt++;continue}
if(fld.value)
{
totals[totals.length]=fld.value
}
// alert(cnt)
cnt++
}
totalamt=0
for(var j=0;j<totals.length;j++)
{
totalamt+=new Number(totals[j])
}

document.total.ordertotal.value=totalamt
}
</script>
</head>

<body>
<form name="total">
<input type=text name="pic1001">
<input type=text name="pic1002">
<input type=text name="pic1004">
<input type=text name="pic1005">
<input type=text name="ordertotal">
</form>
<button onClick="b()"></button>
</body>
</html>
jared@aauser.com

hd65 · Jan 5, 2001

Thanks I'll have to look at the other scripts to see if I can find a way to set somenumber.

thanks again.
paul

jaredn · Jan 5, 2001

maybe I can find a way to do it... are those the only textboxes the script generates, if so you can use the form.elements array to loop through all the elements, see if their textboxes and only add values if they are... i gotta go home (stillo at work) or my girlfriend will kill me, so cya monday

) jared@aauser.com

hd65 · Jan 5, 2001

No........

but if you think of anything just let me know
if not thats ok too.

paul

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Can I use a loop? 1

hd65

Technical User

jaredn

Programmer

hd65

Technical User

jaredn

Programmer

hd65

Technical User

jaredn

Programmer

hd65

Technical User

jaredn

Programmer

hd65

Technical User

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