DW function, Firefox works, IE doesn't.

F

Fabri

I would like to ask you the following:

I use Macromedia Dreamweaver as an editor for HTML and Js.

It also writes some js functions to simply validate forms.

I always used it with no bugs.

Till now. This is the problem (and the page):

===========================================================================
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Test</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<script language="JavaScript" type="text/JavaScript">
<!--
function MM_findObj(n, d) { //v4.01
var p,i,x; if(!d) d=document;
if((p=n.indexOf("?"))>0&&parent.frames.length) {
d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++)
x=d.forms[n];
for(i=0;!x&&d.layers&&i<d.layers.length;i++)
x=MM_findObj(n,d.layers.document);
if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_validateForm() { //v4.0
var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm.arguments;
for (i=0; i<(args.length-2); i+=3) { test=args[i+2];
val=MM_findObj(args);
if (val) { nm=val.name; if ((val=val.value)!="") {
if (test.indexOf('isEmail')!=-1) { p=val.indexOf('@');
if (p<1 || p==(val.length-1)) errors+='- '+nm+' must contain an
e-mail address.\n';
} else if (test!='R') { num = parseFloat(val);
if (isNaN(val)) errors+='- '+nm+' must contain a number.\n';
if (test.indexOf('inRange') != -1) { p=test.indexOf(':');
min=test.substring(8,p); max=test.substring(p+1);
if (num<min || max<num) errors+='- '+nm+' must contain a
number between '+min+' and '+max+'.\n';
} } } else if (test.charAt(0) == 'R') errors += '- '+nm+' is
required.\n'; }
} if (errors) alert('The following error(s) occurred:\n'+errors);
document.MM_returnValue = (errors == '');
}
//-->
</script>
</head>
<body>
<form name="formA">
<input type="text" name="pippo">
<input type="text" name="email">
<input name="A" type="submit"
onClick="MM_validateForm('pippo','','R','email','','RisEmail');return
document.MM_returnValue" value="Invia">
</form>

<form name="formB">
<input type="hidden" name="pippo">
<input type="hidden" name="email">
</form>

</body>
</html>

===========================================================================

My target is to validate "pippo" to have it not empty and "email" not
empty but also a valid email.

Dreamweaver wrote these 2 functions to do this and added onClick event
to button this way.

The only new thing I did is to write an hidden form with same fields
names because I have to do this before posting data.

I tried this code in Firefox and it works fine.

I tried this in IE and it says: "'val' is null or it is not an object".

What do you think about it?

Any help much appreciated.

Regards.
 
R

RobB

Fabri said:
I would like to ask you the following:

I use Macromedia Dreamweaver as an editor for HTML and Js.

It also writes some js functions to simply validate forms.

I always used it with no bugs.

Till now. This is the problem (and the page):

===========================================================================
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Test</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<script language="JavaScript" type="text/JavaScript">
<!--
function MM_findObj(n, d) { //v4.01
var p,i,x; if(!d) d=document;
if((p=n.indexOf("?"))>0&&parent.frames.length) {
d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++)
x=d.forms[n];
for(i=0;!x&&d.layers&&i<d.layers.length;i++)
x=MM_findObj(n,d.layers.document);
if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_validateForm() { //v4.0
var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm.arguments;
for (i=0; i<(args.length-2); i+=3) { test=args[i+2];
val=MM_findObj(args);
if (val) { nm=val.name; if ((val=val.value)!="") {
if (test.indexOf('isEmail')!=-1) { p=val.indexOf('@');
if (p<1 || p==(val.length-1)) errors+='- '+nm+' must contain an
e-mail address.\n';
} else if (test!='R') { num = parseFloat(val);
if (isNaN(val)) errors+='- '+nm+' must contain a number.\n';
if (test.indexOf('inRange') != -1) { p=test.indexOf(':');
min=test.substring(8,p); max=test.substring(p+1);
if (num<min || max<num) errors+='- '+nm+' must contain a
number between '+min+' and '+max+'.\n';
} } } else if (test.charAt(0) == 'R') errors += '- '+nm+' is
required.\n'; }
} if (errors) alert('The following error(s) occurred:\n'+errors);
document.MM_returnValue = (errors == '');
}
//-->
</script>
</head>
<body>
<form name="formA">
<input type="text" name="pippo">
<input type="text" name="email">
<input name="A" type="submit"
onClick="MM_validateForm('pippo','','R','email','','RisEmail');return
document.MM_returnValue" value="Invia">
</form>

<form name="formB">
<input type="hidden" name="pippo">
<input type="hidden" name="email">
</form>

</body>
</html>

===========================================================================

My target is to validate "pippo" to have it not empty and "email" not
empty but also a valid email.

Dreamweaver wrote these 2 functions to do this and added onClick event
to button this way.

The only new thing I did is to write an hidden form with same fields
names because I have to do this before posting data.

I tried this code in Firefox and it works fine.

I tried this in IE and it says: "'val' is null or it is not an object".

What do you think about it?

Any help much appreciated.

Regards.
Click to expand...


Well...you've got two pippos now so, you're up the creek. ;)

That MickeyMouse_findObj() routine isn't very good with same-named
form elements, which IE puts in an array (inside the document.all[]
array) so it can store pointers to both. Couldn't figure out any way
to pass that reference - pippo[0] - as a string argument, so the best
fix is probably to lose that function completely, and change this
line:

val=MM_findObj(args);

....to

val=document.getElementById(args);

Then:

<form name="formA">
<input id="pippo1" type="text" name="pippo" value="">
<input id="email1" type="text" name="email" value="">
<input name="A" type="submit"
onClick="MM_validateForm('pippo1','','R','email1','','RisEmail');return
document.MM_returnValue" value="Invia">
</form>

<form name="formB">
<input id="pippo2" type="hidden" name="pippo">
<input id="email2" type="hidden" name="email">
</form>

....and it should work. Totally useless (catch-all) code for simple
validations, though.

Always set value="" for form elements, some browsers will do it it for
you otherwise.
 
F

Fabri

RobB said:
val=MM_findObj(args);

...to

val=document.getElementById(args);
[CUT]

...and it should work. Totally useless (catch-all) code for simple
validations, though.
Click to expand...



Rob...simply perfect :)

Thank you very much.
 

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