javascript and dynamically named checkboxes

[Golden_Jet]

We have a page that has Select/Deselect All buttons to check/uncheck all the checkboxes in the form. The checkboxes are dynamically named:

<cfoutput query="qHoldAdj">
<cfinput type="checkbox" name="select_#qHoldAdj.CURRENTROW#">
</cfoutput>

There are also other field types in this form, so currently this is the JS we have to select all the checkboxes:

function selectAll()
{
var objForm=document.forms.validateAdj;
var m=objForm.length;
for (var i=0; i<m; i++){
var e=objForm.elements ;
if (e.type=='checkbox' && e.name!='approve'){
e.checked=true;
}
}
}

With 6 form fields per line, when we spit out over 100 rows a page, firing off this JS freezes the page for a bit while it runs through every single form field, decides if its a cb or not, then checks it if it is. Ugh!

What would be nice if we could reference the checkboxes by name, eliminate 80% of the work per row. Problem is the names are dynamic and referencing them in JS is a headache we haven't figured out how to cure yet.

Anybody have an idea of how to do this...?

[iKnowKungFoo]

Can you not have all the grouped checkboxes use the same name, with different values?

<cfoutput query="qHoldAdj">
<cfinput type="checkbox" name="select_foo" value="#qHoldAdj.CURRENTROW#">
</cfoutput>

Then the Javascript is just looping over the array document.formName.select_foo.

If you can't do this, then create a Javascript array variable to store all the checkbox names.

<script type="text/javascript">
_checkboxArray = new Array();
<cfoutput query="qHoldAdj">
_checkboxArray[_checkboxArray.length] = "select_#qHoldAdj.CURRENTROW#";
</cfoutput>
</script>

So the final output will be:

<script type="text/javascript">
_checkboxArray = new Array();
_checkboxArray[_checkboxArray.length] = "select_1"; // _checkboxArray[0]
_checkboxArray[_checkboxArray.length] = "select_2"; // _checkboxArray[1]
_checkboxArray[_checkboxArray.length] = "select_3"; // _checkboxArray[2]
</cfoutput>
</script>

Now just loop over the array and check whichever box meets your criteria.