items[1][quantity]: "document has no properties"

[maminx]

hello all, i have this html below


[HTML]<input type="text" name="items[1][quantity]" size="3" value="1" onchange="javascript:showNameObject();"/>
[/HTML]
and i want to alert that object of name with this script

<script language="javascript">
 var form = document.forms[0];
function showNameObject() {
     alert(form.items[1][quantity].name);
}
</script>
 

but the browser shown an error "document has no properties..."

any advice please...???thanks

[dmjpro]

I think name items[1][quantity] is not valid.

[r035198x]

Why don't you explain what you are trying to achieve first.

[maminx]

Why don't you explain what you are trying to achieve first.

actually i have the function to create an element (input, textarea, and select option)..
and it's generated by looping..of course to make a name and id of that element that i've created is by array..This is the snipped of that function

    function create_itemized_fields()
    {
        var form = document.forms[0];
        // add a new counter to item_count, which tracks the current number of items.
        item_count++;    
        if (item_count <= <?php echo DetailRowMax?>){//DetailRowMax value could be changed at config.php
            var row = document.createElement('tr');
            row.setAttribute('id', 'item'+item_count);
 
            var td = document.createElement('td');
            var p = document.createElement('p');
            var label = document.createElement('label');
            var span = document.createElement('span');
            var theData = document.createTextNode('Pra BP No.');
            var theInput = document.createElement('input');
            theInput.setAttribute('type', 'text');
            theInput.setAttribute('name', 'items['+item_count+'][quantity]');
            theInput.setAttribute('size', '3');
            theInput.setAttribute('class', 'requiredfield');            
            theInput.setAttribute('value',item_count);
            //theInput.setAttribute('onkeyup', 'recalculate_items();');
            span.appendChild(theData);
            label.appendChild(span);
            label.appendChild(theInput);
            p.appendChild(label);            
            td.appendChild(p);
            row.appendChild(td);
             }else { alert("test");
             }
}
 
 

so, have any idea?

[acoder]

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[acoder]

and i want to alert that object of name with this script

<script language="javascript">
 var form = document.forms[0];
function showNameObject() {
     alert(form.items[1][quantity].name);
}
</script>
 

but the browser shown an error "document has no properties..."

If this is the error, that means the error is on the line before the function: var form=document.forms[0]. The document is not ready. Make sure the line is inside the function or called after the page has loaded.

PS. use the type attribute for the script tag. The language one has been deprecated.

PPS. and yeah, form.items[i][quantity] is incorrect syntax, but we can deal with that later.

[maminx]

If this is the error, that means the error is on the line before the function: var form=document.forms[0]. The document is not ready. Make sure the line is inside the function or called after the page has loaded.

PS. use the type attribute for the script tag. The language one has been deprecated.

PPS. and yeah, form.items[i][quantity] is incorrect syntax, but we can deal with that later.

ok thanks a lot sir

kind regard, mamin