Javascript code only works in Netscape, yet no Scirpt error???

John

Code is as follows:

document.write( '<FORM name="horseform ">');
document.write( ' <SELECT SIZE="1" NAME="horsebran dslist" STYLE="font-size:
8pt">');
document.write( ' <OPTION VALUE="http://my.domain.com/cat1.html">Cate gory
1</OPTION>');
document.write( ' <OPTION VALUE="http://my.domain.com/cat2.html">Cate gory
2</OPTION>');
document.write( ' <OPTION VALUE="http://my.domain.com/cat3.html">Cate gory
3</OPTION>');
document.write( ' </SELECT>');
document.write( ' <a href="javascrip t:;" title="Click here"
onclick="goto_P etCategoryURL(d ocument.horsefo rm.elements.hor sebrandslist)"> <img
border="0" src="../images/horse/someimage.gif" width="29" height="20"
alt="Click here" align="absbotto m"></a>');
document.write( '</FORM>');
In a separate .js file, the function "goto_PetCatego ryURL" looks like this:

function goto_PetCategor yURL(object) {
if (object.selecte dIndex > 0) {
window.location .href = object.options[object.selected Index].value;
}
return;
}
In Netscape (I use version 7), all works OK. In IE or Opera, when I click
the image, nothing happens. No error shows in the Opera JavaScript Console
or the bottom left of IE.

Who can solve this mystery?

Thanks,
Don

Jul 23 '05 #1

Subscribe Reply

1314

Lee

John said:

Code is as follows:

document.write ('<FORM name="horseform ">');
document.write (' <SELECT SIZE="1" NAME="horsebran dslist" STYLE="font-size:
8pt">');
document.write (' <OPTION VALUE="http://my.domain.com/cat1.html">Cate gory
1</OPTION>');
document.write (' <OPTION VALUE="http://my.domain.com/cat2.html">Cate gory
2</OPTION>');
document.write (' <OPTION VALUE="http://my.domain.com/cat3.html">Cate gory
3</OPTION>');
document.write (' </SELECT>');
document.write (' <a href="javascrip t:;" title="Click here"
onclick="goto_ PetCategoryURL( document.horsef orm.elements.ho rsebrandslist)" ><img
border="0" src="../images/horse/someimage.gif" width="29" height="20"
alt="Click here" align="absbotto m"></a>');
document.write ('</FORM>');
In a separate .js file, the function "goto_PetCatego ryURL" looks like this:

function goto_PetCategor yURL(object) {
if (object.selecte dIndex > 0) {
window.location .href = object.options[object.selected Index].value;
}
return;
}

1. You've got no way of going to cat1.html, since selectedIndex
for that choice is 0.

2. Your onclick handler should return false:
onclick="goto_P etCategoryURL(. ..);return false"

Jul 23 '05 #2

mscir

John wrote:

Code is as follows:
<snip>

function goto_PetCategor yURL(object) {
if (object.selecte dIndex > 0) {
window.location .href = object.options[object.selected Index].value;
}
return;
}

In Netscape (I use version 7), all works OK. In IE or Opera, when I click
the image, nothing happens. No error shows in the Opera JavaScript Console
or the bottom left of IE. Who can solve this mystery?
Thanks,
Don

The first selectedindex is 0, you ignore it with your if condition.

Also, I believe it's more efficient to concatenate a string several
times and to one document.write than to do multiple document.write.
This works in my IE 6, Firefox 1.0.1, Netscape 7.2:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title>select </title>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=ISO-8859-1">
<script type="text/javascript">
function goto_PetCategor yURL(object) {
if (object.selecte dIndex > -1){
alert(object.op tions[object.selected Index].value);
window.location .href = object.options[object.selected Index].value;
}
return;
}
</script>

</head>

<body>
<script type="text/javascript">
var s='<FORM name="horseform ">';
s+=' <SELECT SIZE="1" NAME="horsebran dslist" STYLE="font-size:8pt">';
s+=' <OPTION VALUE="http://my.domain.com/cat1.html"
SELECTED>Catego ry 1</OPTION>';
s+=' <OPTION VALUE="http://my.domain.com/cat2.html">Cate gory
2</OPTION>';
s+=' <OPTION VALUE="http://my.domain.com/cat3.html">Cate gory
3</OPTION>';
s+=' </SELECT>';
s+=' <a href="#;" title="Click Here"
onclick="goto_P etCategoryURL(d ocument.horsefo rm.elements.hor sebrandslist)"> ';
s+='<img border="0" src="someimage. gif" width="29" height="20"
alt="Click here" align="absbotto m"></a>';
s+='</FORM>';
document.write( s);
</script>
</body>
</html>

Jul 23 '05 #3

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